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Solving exponential equations without logarithms worksheet

Solving exponential equations without logarithms worksheet. 92x − 3 = 27. Learn with worked examples, get interactive applets, and watch instructional videos. So, you can change the equation into: -2b = -b. 4 Graphing Logarithmic Functions; Lesson 9. Cuemath's interactive math worksheets consist of visual simulations to help your child visualize the concepts being taught, i. Create your own worksheets like this one with Infinite Algebra 2. + 6 = 5. 2 Logarithmic Functions and their Graphs Evaluate logarithmic expressions of This worksheet will explain how to solve exponential variables in algebraic expressions using logarithmic tables and balancing the equation. 8^ (2x)=3 ⇔ 2x=log_8 3. Then, solve for "b". Solving Exponential Equations Using Logarithms. 5) 64 1 2 = 8 log 64 8 = 1 2 6) 12 2 = 144 log 12 144 = 2 7) 9−2 = 1 81 log 9 1 81 = −2 8) (1 12) 2 = 1 144 log 1 12 1 144 = 2 Rewrite W 1 oAvl dl f 1r liqgfh wt9s a fr Sezs HeUrpvre UdC. 2x = 6 Subtract 2x and add 7 to both sides. 3. Logarithmic Equations Worksheet with Key. 7) 10a + 10 = 46 8) ea = 26 9) 107x = 12 10) en - 2 - 5 We can use logarithms to solve *any* exponential equation of the form a⋅bᶜˣ=d. If we are given equations involving exponentials or the natural logarithm, remember that you can take the exponential of both sides of the equation to get rid of the logarithm or take the natural logarithm of both sides to get rid of the exponential. 8 Applications of Logarithms Title: Logarithmic Equations, Level I. 2 Logarithmic Functions and their Graphs Rewrite exponential equations as logarithmic equations, and vice versa. Doing this gives, \ [5 { {\bf {e}}^ {2z + 4}} = 8\] Next, we’ve got to get a coefficient of 1 on the exponential. If necessary, solve for r, the rate of growth or decay. Problem 1 : 2x = 32. pdf - Kuta Software EN English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian český русский български العربية Unknown . 1 SOLVING EXPONENTIAL EQUATIONS WORKED EXAMPLE 1. Then ln(0. The same solution will be reached using any base, but calculators can be used Thus, the exponential equation: y = 1^x simplifies to y=1, a linear equation that creates a horizontal line. Hope this helps. Some of the worksheets displayed are Work 2 7 logarithms and exponentials, Solving exponential and logarithmic equations, Work logarithmic function, Exponential equations not requiring logarithms, Solving logarithmic equations, Exponential logarithmic equations, Solving exponential and logarithmic equations date period ln(x2) = ln(2x + 3) x2 = 2x + 3 Use the one-to-one property of the logarithm x2 − 2x − 3 = 0 Get zero on one side before factoring (x − 3)(x + 1) = 0 Factor using FOIL x − 3 = 0 or x + 1 = 0 If a product is zero, one of the factors must be zero x = 3 or x = − 11 Solve for x. To do this, divide both sides by 5 as shown below. 2. f Worksheet by Kuta Software LLC Kuta Software - Infinite Algebra 2 Name_____ Exponential Equations Not Requiring Logarithms Date_____ Period____ Solve each equation. 7) 10a + 10 = 46 8) ea = 26 9) 107x = 12 10) en - 2 - 5 One method is to get all logs to the left side of the equal sign and condense the problem so there is only one log. Free trial available at KutaSoftware. 3:45. exponential form: 3 7 3 7 7 8 2. Logarithmic equations may also involve inputs where the variable has a coefficient other than 1, or where the variable itself is squared. 465 3) 16x + 2 = 95 1. Solution: 490 cannot be written as a power of 7. This Solving Exponential Equations using Logarithms activity is designed for Algebra, PreCalculus, or College Algebra and is challenging as well as engaging practice for your students Included: Two sets of 20 Task Cards, one with and one without QR codes. 843 and round to the nearest thousandth. Solve: $$ 4^{x+1} = 4^9 $$ Step 1. Solve Logarithmic Equations Using the Properties of Logarithms. Round your answers to the nearest ten-thousandth. 11) log. 5) = x Dec 16, 2019 · Solve Logarithmic Equations Using the Properties of Logarithms. Exponential equations solving logarithmic key functions quadratic logarithms inequalities logarithm radical intervention variables solve equation chessmuseum tessshebaylo both Exponential equations logarithms solving slope algebra requiring kuta logarithmic math Exponential solving equations without log 29. () Author: Brooklyn Eve Punziano Created Date: 3/4/2013 11:17:35 AM Graphing Exponential Functions Worksheets. 2nd log both sides. The logarithm must have the same base as the exponential expression in the equation. 1st Isolate the base with the exponent by dividing both sides by 5 and you get: 10^x-31=16. solve logarithmic equations using 1-to-1 properties of logarithms. Exponential Equations Not Requiring Logarithms. 3 Solving & Evaluating Logarithms using Common Bases; Lesson 9. Solve for x. Showing top 8 worksheets in the category - Solving Log And Exponential. rewrite with the same base simplify same base exponents are equal. In these cases, we solve by taking the logarithm of each side. If one of the terms in the equation has base 10 10, use the common logarithm. Rewrite so bases are equal if needed. Solve the Resulting Equation. 32. 1) 12v = 59 1. x) is the power of a term (e. 1) v 2) k 3) n 4) x ©d 92 f0p1 t2x uK7u Utoar 7S3oIf 2tEw0aTr 1eP uLcLMC6. LE. In other words, you have to have " (some base) to (some power) equals (the same base) to (some other power)", where you set the two powers equal to Worksheet by Kuta Software LLC Algebra 2 Solving Exponential Equations Worksheet Name_____ ©i C2a0K1N7G oKDuftya` hSvoYfItJwDaCrQeI JLpLbCQ. As students finish the problems, they will fill in the blanks of a random fact! Get full access to all Solution Steps for any math problem For a Free Trial, Download The App. 13) xy . So we solve this exponential equation using logarithms. a. 0 to start asking questions. -1-Solve each equation. 3) 625x + 1 = 25x 4) 363m = 216-m 5) 3-3n - 2 = 33n - 1 6) 643x = 16 CLASS EXAMPLES: Solve each equation. log52x − 1 = log7. log 10 of 10^x-31=log 10 of 16. Using a property of logarithms, log a m = m log a. What are the 3 types of logarithms? The three types of logarithms are common logarithms (base 10), natural logarithms (base e), and logarithms with an arbitrary base. Worksheet by Kuta Software LLC Kuta Software - Infinite Precalculus Exponential Equations Not Requiring Logarithms Solve each equation. For example solve the exponential equation 5 𝑥 = 2 𝑥+2. Now that we have the properties of logarithms, we have additional methods we can use to solve logarithmic equations. apply logarithmic and exponential equations to real-world problems. If there are two exponential parts put one on each side of the equation. Use logarithmic properties to Example. Solving Exponential Equations Without Logs - Displaying top 8 worksheets found for this concept. 7 years ago. Show all your work. 3rd add 31 to both sides to isolate x. Sometimes the terms of an exponential equation cannot be rewritten with a common base. Class: Math 107 or Math 111 Author: Lindsey Bramlett-Smith. We learn how to solve exponential equations not requiring logarithms. 1032. Now, we can solve for x by converting the equation to logarithmic form. 3) Solve for the variable. Step 2. Important: if \ (a>0\) and \ (a\ne 1\) then: Introduction to Logarithms F. Some of the worksheets for this concept are Exponential equations not requiring logarithms, Exponential equations not requiring logarithms date period, Solving exponential and logarithmic equations, Solving exponential equations, Unit 5bexponentials Steps to Solve Exponential Equations using Logarithms. com. 8x + 2 = 16x + 1 (23)x + 2 = (24)x + 1 Write 8 and 16 as powers of 2 23x + 6 = 24x + 4 To take a power of a power, multiply exponents 3x + 6 = 4x + 4 Use the one-to-one property to set the exponents equal x = 2 Solve for x. Logarithmic Equations Worksheets - Download free PDFs Mar 28, 2021 · Step 1: Isolate the exponential expression. 3 log x 8 6 2. 5) = ln(e x) ln(0. ©X U2W0z1623 0KKuNtfaw PSkoTf4ttwFaDrpe4 lLqLnCn. 6 Solving Logarithmic Equations using Laws of Logarithms; Lesson 9. different bases (32)2x − 3 = 33. e x or 10 x), and its value is to be calculated, then we must take logs on both sides of the equation to allow it to be solved. x=log 10 of 16. In particular, the property that states: “ If log x = log. t Y WAml7l r kr BiOgsh ctMsT aroe Nsyeyrev0e YdV. 2 9. Show work to support 73. x. php?board=33. Rewrite each equation in exponential form. Write each side of the equation inside a log. Fill in as much of the model as you can from the information given. Recall, since log (a) = log (b) log (a) = log (b) is equivalent to a = b, a = b, we may apply logarithms with the same base on both sides of an Create your own worksheets like this one with Infinite Algebra 2. For the 2 sides of your equation to be equal, the exponents must be equal. Divide by 2: x=log(7/3)/2 Now you can use a calculator to find the solution of the equation as a rounded decimal number . Solving an Exponential Inequality. 25) 26) −3. e. Practice Worksheet: Exponential and Logarithmic Functions [Round answers to three decimal places. Take the logarithm of each side of the equation. 1] 2] Evaluate the logarithm without using a calculator. There are two solutions: 3 or − 1. Solve the equation 3421 4xx−2, giving your answer in the form log log p q where p Unit test. Take logarithms of both sides. 1) log 6 36 = 2 62 = 36 2) log 289 17 = 1 2 289 1 2 = 17 3) log 14 1 196 = −2 14 −2 = 1 196 4) log 3 81 = 4 34 = 81 Rewrite each equation in logarithmic form. Step 2: Take the logarithm of both sides. x < y. (a) 7 x - 1 = 4. I know you got this part down! Just a big caution. Keep the answer exact or give decimal approximations. solve logarithmic equations using the definition of a logarithm. 2) Get the logarithms of both sides of the equation. 1) 42 x + 3 = 1 {− 3 Showing top 8 worksheets in the category - Solving Exponential Equations Without Logs. 6 ⋅ 3x = 54. These Exponential and Logarithmic Functions Worksheets are a good resource for students in the 8th Grade through the 12th Worksheet by Kuta Software LLC Advanced Functions Solving Exponential and Logarithmic Equations Name_____ Date_____ Period____ ©a f2C0]1c5l GKuuSt`aG GSao_fvt_w^a[r^eO tLGLrCE. 1) CLASS EXAMPLES - EXPONENTIAL EQUATIONS: Solve each equation. How do you solve exponential equations with notes? This is one way to solve exponential equations. expand_more. 34x − 6 = 33 4x − 6 = 3 4x = 9. 6409 2) 3x = 45 3. x = 3 Apr 4, 2015 · Practice Worksheet: Evaluating Logarithms Rewrite the equation in exponential form. i h 2M4a id Rei bw 1i yt 9h3 bI Gn KfXiKn jimtXeW NAFlfg ue6bQrMaa o2 h. b d fAElGlj JrdihgMh`tzsM SrKe`sHesrGvEejdg. step 2 Compare the exponents and solve. Solving Equations. LT3 3. 4a F. com Exponential Equations and Logarithms Solve each equation for the unknown variable. For example, 3 2, this means that 3 can be Free lesson on Solving logarithmic equations, taken from the Logarithms and Exponentials topic of our iGCSE (2021 Edition) iGCSE (2021 Edition) textbook. 1. 2x + 6 = 25 same base. 4. Rewrite each equation in logarithmic form. Chat & Messaging. The next step would be to write the problem in exponential form and solve. Step 3: Apply the power rule for logarithms and then solve. Round to the hundredths if needed. solving an exponential equation using logarithms Rewrite each equation in exponential form. It is usually expressed as a raised expression over the number. Use a calculator to evaluate 73. Practice questions 1. 1 1. ALWAYScheck your solved values with the original logarithmic equation. J v bAHlYlq krliQgdhttose ernezsNe`rqv\e^d_. In this lesson, we will learn how to use logarithms to solve exponential equations. Oct 10, 2017 · 🌎 Brought to you by: https://StudyForce. In mathematics, dieser topic is also known as solving exponential gleichungen with the same socket. z Worksheet by Kuta Software LLC Kuta Software - Infinite Algebra 2 Name_____ Logarithmic Equations Date_____ Period____ Distribute: [latex]\left( {x + 2} \right)\left( 3 \right) = 3x + 6[/latex] Drop the logs, set the arguments (stuff inside the parenthesis) equal to each other. Nov 12, 2012 · Exponential Equations Not Requiring Logarithms. Analysis. Problem 2 : 3x-2 = 1/9. Solve 0. This is a great introduction into expon 10 years ago. log 7 x c. You can also solve an inequality by taking a logarithm of each side or by exponentiating. log_c a = log_b a/log_b c. We do not multiply the 5 and the 2 as this goes against the order of operations! 5 ⋅ 2 x = 240 2 x = 48. Draw the graph of each of the following logarithmic functions, and analyze each of them completely. Practice Worksheet: Solving Exponential Equations Solve the exponential equation using logarithms. 1) 53a = 52a + 2 2) 322x = 24 EXPONENTIAL EQUATIONS: Solve each equation. Step 1. CLASS EXAMPLES - EXPONENTIAL EQUATIONS: Solve each equation. com/index. Click here for More Algebra 2 - Exponential and Logarithmic Worksheets. e Y yAFlElJ WrEi4gihetQsB Urzes rePr5v1e6du. This set also includes resources to solve log To solve exponential equations without logarithms, you need to have equations with comparable exponential expressions on either side of the "equals" sign, so you can compare the powers and solve. Solving Exponential Calculation with the Similar Base or Like Base. Example: Solve the exponential equations. In the section on logarithmic functions, we solved some equations by rewriting the equation in exponential form. Solving exponential equations without logarithms worksheet pdf Steps for solving exponential story problems (applications): 1. Check your solution graphically. Jan 12, 2018 · Exponential equations not requiring logarithms pdf kuta math exercises problems and inequalities how to use solving worksheets pdfs brighterly com solved hw 3 2 1 exponen oiving chegg solve an advanced equation by using natural with decimal answers algebra study you for logarithmic log are vez the ytically property base inverse 24 ln x If You Experience Display Problems with Your Math Worksheet. Oct 13, 2015 · This video goes through 3 examples of how you can solve exponential equations without using logarithms (provided that you can find Like Bases). Logarithm worksheets for high school students cover the skills based on converting between logarithmic form and exponential form, evaluating logarithmic expressions, finding the value of the variable to make the equation correct, solving logarithmic equations, single logarithm, expanding logarithm using power rule, product One way to solve exponential equations, is to write both sides of the equation with the same base. Find the unknown in each of the following equations. ] 1. . If none of the terms in the equation has base 10 10, use the natural logarithm. 843 = x. 7 Solving Exponential Equations without Common Bases; Lesson 9. 4x − 7 = 2x − 1 Apply the one-to-one property of exponents. a I uMNabd Mer Mw7i OtnhT pITn wfli 4n rict0e T LAlsg Ze2b Xr6aj O2T. Solve each equation. 9) log y. Now that the variable is not in an exponent any more, the obtained equation can be solved. = −1. For example, this is how you can solve 3⋅10²ˣ=7: 1. 2 Introduction to Logarithms; Lesson 9. EffortlessMath. Solve the following Equations: 1) Example 2: Solve the exponential equation 7 3x + 7 = 490. Some of the worksheets for this concept are Exponential equations not requiring logarithms, Exponential equations and inequalities, Solving exponential equations, Solving exponential and logarithmic equations, Logarithmic equations and inequalities, 11 exponential Jan 31, 2024 - Discover (and save!) your own Pins on Pinterest. 9345…= x. Solve the following equations. , "see things in action Free Logarithms Calculator - Simplify logarithmic expressions using algebraic rules step-by-step Solving the exponential equations is a bit of a task because they have exponents on them. The use of logarithms is not required. Recall, since log (a) = log (b) log (a) = log (b) is equivalent to a = b, a = b, we may apply logarithms with the same base on both sides of an worksheets for pre-algebra,algebra,calculus,functions Nov 16, 2022 · In order to take the logarithm of both sides we need to have the exponential on one side by itself. In this lesson, we will focus at the exponential equations that what not require the use of logarithm. Then, take the logarithm of both sides of the equation to convert the exponential equation into a logarithmic equation. 6394. So we cannot make the bases to be the same here. Keywords/Tags: logarithmic equations, equations with logarithms, solving logarithmic equations, solving logarithm equations. 1) Keep the exponential expression by itself on one side of the equation. We can only use the facts to simplify this if there isn’t a coefficient on the exponential. x . 5 Laws of Logarithms; Lesson 9. 5 H oMQaSdIeN cwXiitBhN wIqnrf7iznYigtmeH cALlXg3eKbPrgal D2n. The log 10 and 10 cancel out, your left with: x-31=log 10 of 16. Solve 5x+2 =4x 5 x + 2 = 4 x. Make use of our free, printable logarithmic equations worksheets to understand how to solve equations with a log on one side by applying the inverse relationship between logarithms and exponents, and to practice solving equations with logs on both sides by setting the arguments equal. 4 9. For each of the following: * Write the expression as a single logarithm using the rules of logarithms. com🤔 Still stuck in math? Visit https://StudyForce. step 1 Write both sides as a power of the same number. 4 Graphing Logarithmic … WebPractice Worksheet: Solving Exponential Equations. Solve 32x 1 = 243. LT5 3. Apply log on both sides of the given equation, log 7 3x + 7 = log 490. Solve the equation 5131 5, giving your answer in the form log log a b where a and b are integers. Benefits of Solving Exponential Equations Worksheets. Answer. Realistic Exam Questions. If you apply this to logarithms, log_1(x), then the only possible value for "x" is 1 and log_1(1) has an infinite set of solutions. Rewrite this logarithm as an exponential equation. Show all work and check your … Logarithmic Property of Inequality: If b, x, and y are positive real numbers with. 10. Another method involves one of the properties of simple logarithms. General strategy. Step 1: Isolate the exponential expression. In this case, we will take the common logarithm of both sides so that we can approximate our result on a calculator. You may choose to graph an equation or write an equation from a graph. First, the definition of a logarithm will be used to isolate the variable term. 3 Solving and Evaluating Exponential & Logarithmic Equations with Common Bases F. (1) 3x 12 = 12 (2) 3 x = 2 (3) 4 x= 5 +1 (4) 61 x = 10 (5) 3 2x+1 = 2 (6) 10 1+e x = 2 (7) 52 x 25 12 = 0 (8) e x 2ex = 15 11. x x = = = Solving Equations with unknown Exponents If an unknown value (e. Round your answers to four decimal places. 1) 53 =125 2) 𝑟3=69 3) 20 =56 4) 4𝑟+1=1 5) 243 =81 6) 6 –3𝑣2=36 3 7 )23 =9 8) 6 =51 4 9) 216 2𝑎 36−𝑎 =216 10) –25×25𝑣=625 Displaying all worksheets related to - Solving Exponential Equations Without Logs. View All Classes. 1 Solve the equation 4 × 5x+1 x= 3 , giving your answer in the form log log a b. Solve for the variable. BF. 32 +31. 2 Logarithmic Functions and their Graphs Evaluate logarithmic expressions of different bases without a calculator. You can choose both the form and number of problems. 1041. 2 x = 48 is equivalent to log 2. Math Worksheets Name: _____ Date: _____ … So Much More Online! Please visit: www. This is one method to solve exponential equations. 7) . Answer 3 The one-to-one property can be used if both sides of the equation can be rewritten as a single logarithm with the same base. Use the log law log (a b) = blog (a) to bring the powers down in front of the logs on In this section you will learn to: solve exponential equations using like bases. Show all work To solve for x , we must first isolate the exponential part. They allow us to solve challenging exponential equations, and they are a good excuse to dive deeper into the relationship between a function and its inverse. x ≈ 1768. You can use anybases for logs. Students will practice solving logarithmic equations. Exponents refer to the power which is given to a number, called the base, and it reflects the number of times the base number can be multiplied. log 2 3 1x b. Solve 3x < 20. Exponential Equations Worksheet #1 Name_____ Solve the Exponential Equation. Exponential Inequalities - Displaying top 8 worksheets found for this concept. step 1. In general we can solve exponential equations whose terms do not have like bases in the following way: Apply the logarithm to both sides of the equation. Ignore the bases, and simply set the exponents equal to each other $$ x + 1 = 9 $$ Step 2 Laws, Changing Base, Solving Exponential Equations, Logarithms, Laws of Logarithms, Solving Logarithmic Equations, Applications of Exponential Equations, Exponential & Logarithmic Functions If you are looking for the complete Pre-Calculus series, check out "High School Math Made Understandable Book 3: Math 9, 10, 11, & 12" This topic covers: - Radicals & rational exponents - Graphs & end behavior of exponential functions - Manipulating exponential expressions using exponent properties - Exponential growth & decay - Modeling with exponential functions - Solving exponential equations - Logarithm properties - Solving logarithmic equations - Graphing logarithmic functions - Logarithmic scale Worksheet by Kuta Software LLC Kuta Software - Infinite Precalculus Exponential Equations with Logarithms Name_____ Date_____ Period____-1-Solve each equation. S. Equations. 0. Use the model given, or one of the form 𝑛𝑛(𝑡𝑡) = 𝑛𝑛0𝑒𝑒𝑟𝑟𝑟𝑟. Problem 3 : Solve for x. Some of the worksheets displayed are Exponential equations not requiring logarithms, Exponential equations not requiring logarithms date period, Solving exponential and logarithmic equations, Solving exponential equations, Unit 5bexponentials and logarithms, Unit 8 exponential logarithmic functions, Unit 8 Lesson 9. Example Questions. This Algebra 2 Logarithmic Equations worksheet will give you exponential equations to solve. Use the definition of logarithm: 2x=log(7/3) 3. solve exponential equations using logarithms. 935. Logarithm Worksheets. Using this, solve real-world problems. Divide by 3: 10²ˣ=7/3 2. in the video. Why? Solving Exponential Equations Using Logarithms. The Laws of Ex In this worksheet, students will be given 14 exponential equations to solve. A logarithmic equation is an equation that involves the logarithm of an expression containing a varaible. An unexponential formula involves an unknown variable int the peak. The short test will consist of problems similar to the ones discussed in this presentation. These Algebra 2 Exponential and Logarithmic Functions Worksheets will give you logarithmic functions to graph. Level up on all the skills in this unit and collect up to 900 Mastery points! Logarithms are the inverses of exponents. Check: 2 −1 + 6 = 25 exponents are equal. May 25, 2021 · Solution. Solve the exponential equation using logarithms. 5 𝑥 = 2 𝑥+2 becomes log (5 𝑥) = log (2 𝑥+2 ). b > 1, then logb x > logb y if and only if x > y, and logb x < logb y if and only if. 1768. Then solve the linear equation. While this te Then we apply the one-to-one property of exponents by setting the exponents equal to one another and solving for x: 34x − 7 = 32x 3 34x − 7 = 32x 31 Rewrite 3 as 31. (1) f(x) = logx (2) f(x) = log x (3) f(x) = log(x 3) (4) f(x) = 2log 3 (3 x) (5) f(x SOLVING EXPONENTIAL EQUATIONS WORKSHEET WITHOUT USING LOGARITHMS. 4. Instructions to Tutor: Read instructions and follow all steps for each problem exactly as given. 5 = e x. Students do not need to be on the internet 5) . Nov 20, 2019 · Exponential equations not requiring logarithms pdf kuta solving with diffe bases lessons examples solutions practice problems otosection exponents and worksheet 26 algebra 2 worksheets logarithmic functions writing logs linear thanksgiving math printable logarithm 30 Exponential Equations Not Requiring Logarithms Pdf Kuta Solving Exponential Equations With Logarithms Kuta Solving Exponential Example 1. 32x 1 = 243 32x 1 = 35. LT4 3. Here are some examples: If we can write a single term with the same base on each side of the equation, we can equate the exponents. Sal does something very similar at about. Example. To solve an exponential equation start by isolating the exponential expression on one side of the equation. Worksheets are Exponential equations not requiring logarithms, Exponential equations not requiring logarithms date period, Solving exponential and logarithmic equations, Solving exponential equations, Unit 5bexponentials and logarithms, Unit 8 exponential Feb 17, 2022 · If the equation cannot be rewritten so that each side uses the same base, then apply the logarithm to each side and use properties of logarithms to solve. Attend live sessions on Nagwa Classes to boost your learning with guidance and advice from an expert teacher! Interactive Sessions. 34x − 7 = 32x − 1 Use the division property of exponents. Bring down the exponent in front of the logs. g. 2x=log_8 3. 4 Exponential equations (EMAW) Exponential equations have the unknown variable in the exponent. 6348 4) 2x - 9 = 70 Isolate the exponential part of the equation. 52x − 1 + 2 = 9 52x − 1 = 7. ig ie dk ek dx nu ca lo vb ju