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7-80.

Solve each of the following equations. Homework Help ✎

  1. 5x = 72

  2. 23x =7

  3. 3(2x+4) = 17

Since x is in the exponent, start by taking the log of both sides.

x ≈ 2.657

Use your calculator and continue solving the equation.

x ≈ −0.711