Question

Solve the exponential equation for x. 625 = 5 (7x-3)

A. x = 1
B. x = -1
C. x = 2
D. x = -2

Answer 1

X = 1

Explanation:

Answer 2

A. x = 1

Explanation:

`5^(7x-3)=625\\\\5^(7x-3)=5^4\iff7x-3=4\qquad\text{add 3 to both sides}\\\\7x=7\qquad\text{divide both sides by 7}\\\\x=1`