-2a+27+8a=4a-7a

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Solution for -2a+27+8a=4a-7a equation: 



-2a+27+8a=4a-7a

We move all terms to the left:

-2a+27+8a-(4a-7a)=0

We add all the numbers together, and all the variables

-2a+8a-(-3a)+27=0

We add all the numbers together, and all the variables

6a-(-3a)+27=0

We get rid of parentheses

6a+3a+27=0

We add all the numbers together, and all the variables

9a+27=0

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

9a=-27

a=-27/9

a=-3

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