Find the value of x so that the function has the given value

Question

Find the value x so that the function has the given value F(x)=8x-7 if f(x) =17

Answer 1

f(x) = 8x - 7 = 17

Add 7 to both sides:

8x - 7 + 7 = 17 + 7

8x = 24

Divide both sides by 8:

8x / 8 = 24 / 8

x = 3