Question

2.(3 - y) + 7.(2 - y) = 15 - 4y

Answer 1

Resposta:

$6-2y+14-7y= 15-4y$

$-2y-7y+4y=15-6-14$

$-5y=-5$

$y=\frac{5}{-5}$

$y=-1$

Explicação passo-a-passo: