Problem

Solve the following exponential equation. Express your answer as a decimal approximation rounded to two decimal places. \[ e^{x-2}=11^{\frac{2 x}{11}} \]

Solution

Step 1 :Take the natural logarithm on both sides of the equation: \(\ln(e^{x-2}) = \ln(11^{\frac{2x}{11}})\)

Step 2 :Use the property of logarithms to bring the exponent to the front: \((x-2) = \frac{2x}{11} \ln(11)\)

Step 3 :Multiply through by 11 to clear the fraction: \(11x - 22 = 2x \ln(11)\)

Step 4 :Rearrange terms: \(11x - 2x \ln(11) = 22\)

Step 5 :Factor out x: \(x (11 - 2 \ln(11)) = 22\)

Step 6 :Solve for x: \(x = \frac{22}{11 - 2 \ln(11)}\)

Step 7 :Compute the right-hand side to get the final answer: \(\boxed{x \approx 1.85}\)

From Solvely APP
Source: https://solvelyapp.com/problems/KoSL6q5FgW/

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