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

12-39.

Solve. Homework Help ✎

5

^{x}^{−3}= 120log(2

*x*+ 1) = −1

Use the properties of logarithms.

log(5^{x}^{ − 3}) = log(120)

(x − 3)(log5) = log120

12-39.

Solve. Homework Help ✎

5

^{x}^{−3}= 120log(2

*x*+ 1) = −1

Use the properties of logarithms.

log(5^{x}^{ − 3}) = log(120)

(x − 3)(log5) = log120