Question

PLEASE HELP!! Solve the exponential equation for x.

Answer 1

B x=1

Explanation:

625 = 5^(7x-3)

Rewrite 625 as 5^4

5^4 = 5^(7x-3)

Since the bases are the same, the exponents must be the same

a^b = a^c means b=c

4 = 7x-3

Add 3 to each side

4+3 = 7x-3+3

7 =7x

Divide by 7

7/7 =7x/7

1 =x