84=2(6+2x)

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Solution for 84=2(6+2x) equation: 



84=2(6+2x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

2(2x+6)

We multiply parentheses

4x+12

Back to the equation:

-(4x+12)



We get rid of parentheses

-4x-12+84=0

We add all the numbers together, and all the variables

-4x+72=0

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

-4x=-72

x=-72/-4

x=+18

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