12a-28=-4(1-6a)

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Solution for 12a-28=-4(1-6a) equation: 



12a-28=-4(1-6a)

We move all terms to the left:

12a-28-(-4(1-6a))=0

We add all the numbers together, and all the variables

12a-(-4(-6a+1))-28=0



We calculate terms in parentheses: -(-4(-6a+1)), so:

-4(-6a+1)

We multiply parentheses

24a-4

Back to the equation:

-(24a-4)



We get rid of parentheses

12a-24a+4-28=0

We add all the numbers together, and all the variables

-12a-24=0

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

-12a=24

a=24/-12

a=-2

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