Question

If q(x)=4/5x-9, find the value of x so that the function has the given value of q(x)=3

Answer 1

Answer: x = 15

Explanation:

1) Set q(x) = 3 in the equation.

3 = (4/5)x - 9

2) Add 9 to both sides.

12 = (4/5)x

3) Multiply by 5/4 on both sides.

15 = x

x = 15