Essay

Explaining the Logarithmic Method for Non-Identical Bases

You are working as a peer tutor in a community college academic support center. A returning adult student, who is taking algebra to qualify for a promotion to a coordinator role, is struggling with exponential equations where the bases cannot be made identical. They ask you, "How do I solve an equation like 5x=11{}5^x = 11?"

Write a response to this student outlining the complete, step-by-step procedure required to solve the equation. In your explanation, ensure you:

  1. State the initial algebraic step to take on both sides of the equation.
  2. Identify the specific logarithmic property used to isolate the variable xx and show how the equation is rewritten after applying it.
  3. Write the exact algebraic expression for the solution of xx.
  4. Explain how to check the reasonableness of the approximate solution 1.490 without using a calculator, based on known powers of 5.

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Updated 2026-06-03

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