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1 vote
Need help with this -6(a+b) + 9(a+b)

User Montdidier
by
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2 Answers

5 votes
-6a+(-6b) + 9a +9b then you have to combine the like terms 
User Stringy
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6.6k points
1 vote
first step is to distribute: -6a-6b+9a+9b
then simplify: 3a+3b
User BenvolioT
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