Solve 3^x−5 = 9. (the x-5 is an exponent to the 3) a. x = -3
b. x = 7
c. x = 2
d. x = 8

x=7

Step-by-step explanation:

3^(x−5) = 9

Rewrite 9 and 3^2

3^(x−5) = 3^2

Since the bases are the same, the exponents have to be the same

x-5 = 2

Add 5 to each side

x-5+5 =2+5

x = 7

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point