8 умножить (-y-2)=--5y-(6-9y)
8 * (-y - 2) = - 5y - (6 - 9y)
-8y - 16 = -5y - 6 + 9y
-8y - 16 = 4y - 6
-8y - 4y = 16 - 6
-12y = 10
y = - 10/12
y = -5/6