SOLUTION: Problem: 9q + 6p - 7p + q Book answer: -p + 10q My answer: 10q + -p Not going to school, so I don't know if my answer is correct or not. How would you grade it.

Algebra ->  Equations -> SOLUTION: Problem: 9q + 6p - 7p + q Book answer: -p + 10q My answer: 10q + -p Not going to school, so I don't know if my answer is correct or not. How would you grade it.      Log On


   

Question 402201: Problem:
9q + 6p - 7p + q
Book answer:
-p + 10q
My answer:
10q + -p
Not going to school, so I don't know if my answer is correct or not. How would you grade it.
Found 2 solutions by ewatrrr, sofiyac:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

Book answer: -p + 10q  and Your answer: 10q + -p say the same thing.

Note: as would: 9q + 6p - 7p + q =  10q - p

the important thing is that 'Like terms' are being combined for simplification.

Answer by sofiyac(983) About Me  (Show Source):
You can put this solution on YOUR website!
Your answer is correct technically BUT
1. It's not correct to write two symbols together like + -. It would simplify to just -.
2. Normally the answer is written with letters in alphabetical order. So p comes BEFORE q, that's why the answer should be -p+10q.
:)