5(3-2y)-5(9-y)=3(y+5)
15 - 10y - 45 + 5y = 3y + 15
-10y - 30 + 5y = 3y + 15
-5y - 30 = 3y + 15
-5y - 3y = 15 + 30
-8y = 45
y = -45/8

Therefore, the solution is y = -45/8.