SOLUTION: 13a-15b-a+2b can u solve this please going back to school in fall to study forensic science need to get through this placement test

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Question 131372: 13a-15b-a+2b can u solve this please going back to school in fall to study forensic science need to get through this placement test
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

13a-15b-a%2B2b Start with the given expression


%2813a-a%29%2B%28-15b%2B2b%29 Group like terms


12a-13b Combine like terms