-12+a-4=-7a

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Solution for -12+a-4=-7a equation: 



-12+a-4=-7a

We move all terms to the left:

-12+a-4-(-7a)=0

We add all the numbers together, and all the variables

a-(-7a)-16=0

We get rid of parentheses

a+7a-16=0

We add all the numbers together, and all the variables

8a-16=0

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

8a=16

a=16/8

a=2

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