-21=m/3+2

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Solution for -21=m/3+2 equation: 



-21=m/3+2

We move all terms to the left:

-21-(m/3+2)=0

We get rid of parentheses

-m/3-2-21=0

We multiply all the terms by the denominator


-m-2*3-21*3=0

We add all the numbers together, and all the variables

-1m-69=0

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

-m=69

m=69/-1

m=-69

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