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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