2=s/21

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Solution for 2=s/21 equation: 



2=s/21

We move all terms to the left:

2-(s/21)=0

We add all the numbers together, and all the variables

-(+s/21)+2=0

We get rid of parentheses

-s/21+2=0

We multiply all the terms by the denominator


-s+2*21=0

We add all the numbers together, and all the variables

-1s+42=0

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

-s=-42

s=-42/-1

s=+42

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