Question

x(x+2)=5/7-x

pessuallllll é urgente

Answer 1

Resposta:

x (x + 2) = 5/7 - x

x + 2x = 5/7 - x

3x = 5/7 - x/1

m.m.c de 7-1 = 7

3x = 35 - 35x

3x + 35x = 35

38x = 35

x = 38/35

x = 1,08