Respuesta :

Answer:

  (f+g)(x) = x -7

Step-by-step explanation:

Add the two function definitions together:

  (f +g)(x) = f(x) +g(x)

  = (-3x -5) +(4x -2)

  = (-3 +4)x +(-5 -2)

  (f +g)(x)= x -7