Equation What is x if  7^(3x-5) = 7^-2?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

We need to find x if  7^(3x-5) = 7^-2

7^(3x-5) = 7^-2

as the exponent 7 is common we can equate the exponent

=> 3x - 5 = -2

=> 3x = 5 - 2

=> 3x = 3

=> x = 3/3

=> x = 1

The solution is x = 1.

Approved by eNotes Editorial Team