Answer:
2x + 9 = y
Step-by-step explanation:
[tex]16x + 9 = 9y - 2x \\ 16x + 2x + 9 = 9y \\ 18x + 9 = 9y \\ \frac{18x + 9}{9} = y \\ 2x + 9 = y \\ [/tex]