Respuesta :

Answer:

72+ 18x

Step-by-step explanation:

9x+72+5x+4x

72+ 18x

9(x + 8) + x(5 + 4)

9x + 72 + 5x + 4x

18x + 72

(If you have been asked to solve for x then also include the following, if not then only write what is above!)

18x + 72 = 0

18x = -72

x = -4