SOLUTION: 7(9q-3r)+5(-8q+2r) how do you solve this problem? what are the steps?

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Question 12110: 7(9q-3r)+5(-8q+2r)
how do you solve this problem? what are the steps?
Answer by bonster(299) About Me  (Show Source):
You can put this solution on YOUR website!
7(9q-3r): first multiply 7 by 9q, then 7by -3r
+5(-8q+2r): multiply 5 by -8q, then 5 by 2r
add up the like terms

7(9q-3r)+5(-8q+2r)
63q-21r -40q+10r
23q-11r