Respuesta :

Banabanana
10x-4 + 8x+3 + 91 = 180
18x + 90 = 180
18x = 180 - 90
18x = 90
x = 90/18
x = 5

choixongdong
10x - 4 + 8x + 3 + 91 = 180
18x + 90 = 180
18x = 90
    x = 5

answer
x = 5