81=9(-2+x)

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Solution for 81=9(-2+x) equation: 



81=9(-2+x)

We move all terms to the left:

81-(9(-2+x))=0

We add all the numbers together, and all the variables

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



We calculate terms in parentheses: -(9(x-2)), so:

9(x-2)

We multiply parentheses

9x-18

Back to the equation:

-(9x-18)



We get rid of parentheses

-9x+18+81=0

We add all the numbers together, and all the variables

-9x+99=0

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

-9x=-99

x=-99/-9

x=+11

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