SOLUTION: hi erm, im kinda stuck about a question on my pratise paper... i have an exam in 2 weeks and have realised i have a problem... 1) expand and simplify 9a+3(8-2a) 2)7y+21

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Question 671174: hi erm, im kinda stuck about a question on my pratise paper... i have an exam in 2 weeks and have realised i have a problem...
1) expand and simplify 9a+3(8-2a)
2)7y+21

Answer by swincher4391(1107)   (Show Source): You can put this solution on YOUR website!

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Combine like terms

Factor out a 3.


--------------------

Factor out a 7.

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