(2x)=(81-x)

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Solution for (2x)=(81-x) equation: 



(2x)=(81-x)

We move all terms to the left:

(2x)-((81-x))=0

We add all the numbers together, and all the variables

2x-((-1x+81))=0



We calculate terms in parentheses: -((-1x+81)), so:

(-1x+81)

We get rid of parentheses

-1x+81

Back to the equation:

-(-1x+81)



We get rid of parentheses

2x+1x-81=0

We add all the numbers together, and all the variables

3x-81=0

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

3x=81

x=81/3

x=27

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