Solve. 3^(x _ 5) = 9

a. x = _3
b. x = 2
c. x = 7
d. x = 8

I hope this helps you

3^(x-5)=3^2

x-5=2

x=7

The equation given in the question is 
3^(x _ 5) = 9
3^(x _ 5) = 3^2
Then
x - 5 = 2
x = 2 + 5
   = 7
I hope that the procedure is simple enough for you to understand. From the above deduction, it can be concluded that the correct option among all the options that are given in the question is the third option or option "c". I hope the answer has come to your help.