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Home > A2C > Chapter 12 > Lesson 12.1.2 > Problem 12-39

12-39.
  1. Solve. Homework Help ✎

    1. 5x−3 = 120

    2. log(2x + 1) = −1

Use the properties of logarithms.

log(5x − 3) = log(120)
(x − 3)(log5) = log120