18=9(x-9)

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Solution for 18=9(x-9) equation: 



18=9(x-9)

We move all terms to the left:

18-(9(x-9))=0



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

9(x-9)

We multiply parentheses

9x-81

Back to the equation:

-(9x-81)



We get rid of parentheses

-9x+81+18=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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