Verified Answer :

9 x = 9x
9
5 = 45
9 * 8y = 40y

9x + 45 + 40y

9x + 40y + 45

Espeon

You distribute the 9 to what's inside the parentheses
9x=9x
9
5=45
9*8y=72y
9x+72y+45