81=(7x-3)

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Solution for 81=(7x-3) equation: 



81=(7x-3)

We move all terms to the left:

81-((7x-3))=0



We calculate terms in parentheses: -((7x-3)), so:

(7x-3)

We get rid of parentheses

7x-3

Back to the equation:

-(7x-3)



We get rid of parentheses

-7x+3+81=0

We add all the numbers together, and all the variables

-7x+84=0

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

-7x=-84

x=-84/-7

x=+12

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