What is 9(7x + 8) i dont understand this

Answer:
[tex]63x + 72[/tex]
Step-by-step explanation:
9 times 7x equals 63x
9 times 8 equals 72
Answer:
well first you do what is in the parentheses which is 7x + 8 and that is 15 and then you multiply what was not in the parentheses to the 15 and you get 135x