First, simplify each term:

5a/y + a = (5y+1)a/y

4a/y + 2a = (4y+2)a/y

3a/y + 3a = (3y+3)a/y

Now add the simplified terms together:

(5y+1)a/y + (4y+2)a/y + (3y+3)a/y = (5y + 4y + 3y + 1 + 2 + 3)a/y = 12a/y

Therefore, the final simplified expression is 12a/y.