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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