Question

Find the input(s) when the output is -3
F(x) = 3x+5

Answer 1

Since the output is -3, set the whole equation equal to -3 to find the input.

-3 = 3x + 5. Subtract 5 from each side.

-8 = 3x. Divide each side by 3.

- 8/3 = x

The input for -3 is -8/3