Respuesta :

jemgirl86
a=5 hope this helped you :)

Answer:

a = 5

Explanation:

-4 (7a + 5) = -160

{Distribute}

-28a - 20 = -160

+28a        = +28a

-20           = -160 + 28a

+160         = +160

140           = 28a

28                28

5 = a