SOLUTION: 2a+3b+9c+7a-b-11c

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Question 570456: 2a+3b+9c+7a-b-11c
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
2a+3b+9c+7a-b-11c


(2a+7a)+(3b-b)+(9c-11c)


9a+2b-2c


So 2a+3b+9c+7a-b-11c = 9a+2b-2c
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