Question

HELP OPEN STUDY! I don't know what I am doing wrong.

f(x) = -5x - 6 and g(x) = -2x + 6.
Find - f(x) + g(x)

I combine like terms and get -7 but my teacher said it was wrong. How?

Answer 1

- f(x)=5x+6
g(x)=-2x+6
When you add the two you get 3x+12

Answer 2

How did you get that?

Answer 3

Which part of my explanation do you not understand?

Answer 4

Hey sorry I just saw you turned f into positive

Answer 5

Well, you wrote - f(x)
Was that right or not?

Answer 6

Yes