Question

Grupo 2:
e) 5. (x + 60)-400,7 = 8. (X-40)

f) 7.(2×-50)-4×=10.(51,9-0,1×)​

Answer 1

Resposta:

a) 5x _8x=_320_300+400,7

_3x=_620 +400,7

_3x=_219,3

x=73,1

b) 14x _350 _4x=519_x

14x_4x+x=519+350

11x=869

x=79