Question

6)-5(у-7)= 30-(2y + 1);​

Answer 1

$-5(y - 7) = 30 - (2y + 1)$

$5-y + 35 = 30 - 2y - 1\\-y + 2y = 30 - 1 - 5 - 35\\y = -11$

Ответ: -11.