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Which is a simplified form of the expression 3a + 7 – a – 7?
A. 2a
B. 4a
C. 2a + 14
D. 4a – 14

Answer :

kirstenrewis
You must add all the like terms and you get 2a
It would be: 3a + 7 - a - 7
= 2a 

In short, Your Answer would be Option A

Hope this helps!

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