Respuesta :

fernpaw

Answer:

x + 14

Step-by-step explanation:

(f + g)(x)

This is the same as:

f(x) +g(x).

Substitute.

(3x+9) + (5-2x)

3x+9+5-2x

Simplify

x + 14

(f + g)(x) = x + 14