9(7+8)
Work inside parentheses first.
8 + 7 = 15
Now multiply.
9(15)=135
Your answer is 135. I hope this helps! @-Happy7
9(7+8) add 7 and 8
9(15) multiply
135.
its easier if you just go 9(7+8) so 7 x 9 = 63 and 8 x 9 = 72 so 63 + 72 = 135 :)