Question

Given f(x) = -x + 7, find x when f(x)= -4

Answer 1

x = 11

Explanation:

f(x) = -x + 7

f(x) = -4

Using substitution, -x + 7 = -4

Then you can solve from there

-x + 7 = -4

-x = -11

x = 11

Hope this helps!

(I apologize if I'm incorrect)