Respuesta :

unvalueed

answer: x=15.5

60+8x-4=180

56+8x=180

-56       -56

8x=124

x=15.5
60 + 8x = 180
8x - 4= 180-60
8x- 4 =120
8x-4+4= 120 +4
8x= 124
8x/8 = 124/8
X = 15.5 or 16