I got 18x+9=y
--------- (divide)
9
if you want I can show you how I got that and if its wrong im sorry but that's the best simplified answer I got for y.

Jagger13

16x + 9 = 9y − 2x (add 2x to each side)
16x + 2x + 9 = 9y - 2x + 2x
18x + 9 = 9y (divide 9 from each side)
(18x + 9)/9 = 9y/9
18x/9 + 9/9 = y
2x + 1 = y <-answer