2a+a+7a=27

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Solution for 2a+a+7a=27 equation: 



2a+a+7a=27

We move all terms to the left:

2a+a+7a-(27)=0

We add all the numbers together, and all the variables

10a-27=0

We move all terms containing a to the left, all other terms to the right

10a=27

a=27/10

a=2+7/10

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