Question

10y-5(1-y)=3(2y-2)-20

Answer 1

10y - 5.(1 - y) = 3.(2y - 2) - 20
10y - 5 + 5y = 6y - 6 - 20
10y + 5y - 5 = 6y - 26
15y - 5 = 6y - 26
15y - 6y = -26 + 5
9y = -21
y = -21/9
y = -7/3