9a+7=27-a

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



9a+7=27-a

We move all terms to the left:

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

We add all the numbers together, and all the variables

9a-(-1a+27)+7=0

We get rid of parentheses

9a+1a-27+7=0

We add all the numbers together, and all the variables

10a-20=0

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

10a=20

a=20/10

a=2

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