18=(9+x)

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Solution for 18=(9+x) equation: 



18=(9+x)

We move all terms to the left:

18-((9+x))=0

We add all the numbers together, and all the variables

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



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

(x+9)

We get rid of parentheses

x+9

Back to the equation:

-(x+9)



We get rid of parentheses

-x-9+18=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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