(2x)=(84-x)

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Solution for (2x)=(84-x) equation: 



(2x)=(84-x)

We move all terms to the left:

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

We add all the numbers together, and all the variables

2x-((-1x+84))=0



We calculate terms in parentheses: -((-1x+84)), so:

(-1x+84)

We get rid of parentheses

-1x+84

Back to the equation:

-(-1x+84)



We get rid of parentheses

2x+1x-84=0

We add all the numbers together, and all the variables

3x-84=0

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

3x=84

x=84/3

x=28

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