Respuesta :

B. -4W - 4 = 8
-4W = 8 + 4
-4W = 12
-4W/-4 = 12/-4
W = -3

C. -3 + 8n = -5
8n = -5 + 3
8n = -2
8n/8 = -2/8
n = -0.25