What is the value of n

(-y+5.3) + (7.2y-9) = 6.2y+n

Let's make the left-hand side a bit nicer.

(-y + 5.3) + (7.2y - 9)

Let's take all the things with y together:

-y + 7.2 = 6.2y

Let's take all the things without y together:

5.3 - 9 = - 3.7

So we have:

(-y + 5.3) + (7.2y - 9) = 6.2y - 3.7

What is n?