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Makovka662 [10]
3 years ago
8

Which expression is equivalent to 3a+9a+7b-b

Mathematics
1 answer:
LuckyWell [14K]3 years ago
3 0

Answer:

12a+6b

Step-by-step explanation:

3a+9a+7b-b

Combine like terms

3a+9a    +7b-b

12a         +6b

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