21=q/9

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Solution for 21=q/9 equation: 



21=q/9

We move all terms to the left:

21-(q/9)=0

We add all the numbers together, and all the variables

-(+q/9)+21=0

We get rid of parentheses

-q/9+21=0

We multiply all the terms by the denominator


-q+21*9=0

We add all the numbers together, and all the variables

-1q+189=0

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

-q=-189

q=-189/-1

q=+189

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