28=2(6-2a)

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Solution for 28=2(6-2a) equation: 



28=2(6-2a)

We move all terms to the left:

28-(2(6-2a))=0

We add all the numbers together, and all the variables

-(2(-2a+6))+28=0



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

2(-2a+6)

We multiply parentheses

-4a+12

Back to the equation:

-(-4a+12)



We get rid of parentheses

4a-12+28=0

We add all the numbers together, and all the variables

4a+16=0

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

4a=-16

a=-16/4

a=-4

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