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attashe74 [19]
4 years ago
6

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

Mathematics
2 answers:
Alisiya [41]4 years ago
6 0
-6a+(-6b) + 9a +9b then you have to combine the like terms 
Alinara [238K]4 years ago
5 0
First step is to distribute: -6a-6b+9a+9b
then simplify:  3a+3b
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Answer:

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Step-by-step explanation:

We know that a tree in the middle is 2.5 feet tall.

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