(77-x)=(91-2x)

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Solution for (77-x)=(91-2x) equation: 



(77-x)=(91-2x)

We move all terms to the left:

(77-x)-((91-2x))=0

We add all the numbers together, and all the variables

(-1x+77)-((-2x+91))=0

We get rid of parentheses

-1x-((-2x+91))+77=0



We calculate terms in parentheses: -((-2x+91)), so:

(-2x+91)

We get rid of parentheses

-2x+91

Back to the equation:

-(-2x+91)



We get rid of parentheses

-1x+2x-91+77=0

We add all the numbers together, and all the variables

x-14=0

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

x=14

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