21=(x/18)

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Solution for 21=(x/18) equation: 



21=(x/18)

We move all terms to the left:

21-((x/18))=0

We add all the numbers together, and all the variables

-((+x/18))+21=0

We multiply all the terms by the denominator


-((+x+21*18))=0



We calculate terms in parentheses: -((+x+21*18)), so:

(+x+21*18)

We add all the numbers together, and all the variables

(x+378)

We get rid of parentheses

x+378

Back to the equation:

-(x+378)



We get rid of parentheses

-x-378=0

We add all the numbers together, and all the variables

-1x-378=0

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

-x=378

x=378/-1

x=-378

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