2(2-y) = y-5
4-2y = y-5
-2y-y = -5-4
-3y = -9
3y = 9
y = 9:3
y = 3
2a-(14-3a) = -10
2a-14+3a = -10
5a = -10+14
5a = 4
a = 4/5 = 1 1/5 = 1,2