i cand figure this one out
simplify 1/5(9y+2)+ 1/10(2y-1)
You have to distribute 1/5 into (9y+2) and distribute 1/10 into (2y-1).
You end up with 9y/5+2/5 + 2y/10-1/10
simplify 2y/10: 9y/5+2/5 + 1y/5-1/10
combine like terms 10y/5 + 2/5-1/10
You can subtract 2/5-1/10 but first you have to change the denominator: 10y/5 + 4/10-1/10