-21=6(v-2)+3v

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Solution for -21=6(v-2)+3v equation: 



-21=6(v-2)+3v

We move all terms to the left:

-21-(6(v-2)+3v)=0



We calculate terms in parentheses: -(6(v-2)+3v), so:

6(v-2)+3v

We add all the numbers together, and all the variables

3v+6(v-2)

We multiply parentheses

3v+6v-12

We add all the numbers together, and all the variables

9v-12

Back to the equation:

-(9v-12)



We get rid of parentheses

-9v+12-21=0

We add all the numbers together, and all the variables

-9v-9=0

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

-9v=9

v=9/-9

v=-1

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