84=6(2-2a)

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Solution for 84=6(2-2a) equation: 



84=6(2-2a)

We move all terms to the left:

84-(6(2-2a))=0

We add all the numbers together, and all the variables

-(6(-2a+2))+84=0



We calculate terms in parentheses: -(6(-2a+2)), so:

6(-2a+2)

We multiply parentheses

-12a+12

Back to the equation:

-(-12a+12)



We get rid of parentheses

12a-12+84=0

We add all the numbers together, and all the variables

12a+72=0

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

12a=-72

a=-72/12

a=-6

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