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Solve for \( x \) \[ \log _{5}(3 x-7)=1 \]

Ask by Gonzalez Mccarthy. in the United States
Mar 14,2025

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Tutor-Verified Answer

Answer

\( x=4 \)

Solution

Solve the equation \( \log_{5}(3x-7)=1 \). Solve the equation by following steps: - step0: Solve for \(x\): \(\log_{5}{\left(3x-7\right)}=1\) - step1: Find the domain: \(\log_{5}{\left(3x-7\right)}=1,x>\frac{7}{3}\) - step2: Convert the logarithm into exponential form: \(3x-7=5^{1}\) - step3: Evaluate the power: \(3x-7=5\) - step4: Move the constant to the right side: \(3x=5+7\) - step5: Add the numbers: \(3x=12\) - step6: Divide both sides: \(\frac{3x}{3}=\frac{12}{3}\) - step7: Divide the numbers: \(x=4\) - step8: Check if the solution is in the defined range: \(x=4,x>\frac{7}{3}\) - step9: Find the intersection: \(x=4\) The solution to the equation \( \log_{5}(3x-7)=1 \) is \( x=4 \).

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Beyond the Answer

To solve the equation \( \log_{5}(3x - 7) = 1 \), we start by rewriting the logarithmic equation in its exponential form. This means that: \[ 3x - 7 = 5^1 \] Which simplifies to: \[ 3x - 7 = 5 \] Next, we isolate \( 3x \) by adding 7 to both sides: \[ 3x = 5 + 7 \] \[ 3x = 12 \] Now, we can solve for \( x \) by dividing both sides by 3: \[ x = \frac{12}{3} \] \[ x = 4 \] Therefore, the solution is: \[ \boxed{4} \]

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