28x+84=(4x+12)

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Solution for 28x+84=(4x+12) equation: 



28x+84=(4x+12)

We move all terms to the left:

28x+84-((4x+12))=0



We calculate terms in parentheses: -((4x+12)), so:

(4x+12)

We get rid of parentheses

4x+12

Back to the equation:

-(4x+12)



We get rid of parentheses

28x-4x-12+84=0

We add all the numbers together, and all the variables

24x+72=0

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

24x=-72

x=-72/24

x=-3

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