21=x/9+2

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Solution for 21=x/9+2 equation: 



21=x/9+2

We move all terms to the left:

21-(x/9+2)=0

We get rid of parentheses

-x/9-2+21=0

We multiply all the terms by the denominator


-x-2*9+21*9=0

We add all the numbers together, and all the variables

-1x+171=0

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

-x=-171

x=-171/-1

x=+171

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