2a+9a+7a=27

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Solution for 2a+9a+7a=27 equation: 



2a+9a+7a=27

We move all terms to the left:

2a+9a+7a-(27)=0

We add all the numbers together, and all the variables

18a-27=0

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

18a=27

a=27/18

a=1+1/2

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