Question

F(x)=2x -7, What is x when f(x)=-15?

Answer 1

x = -4

Explanation:

Plug in -15 into the equation:

f(x) = 2x - 7

-15 = 2x - 7

Solve for x:

-15 = 2x - 7

-8 = 2x

-4 = x