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

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



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

We move all terms to the left:

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



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

6v+3(v+2)

We multiply parentheses

6v+3v+6

We add all the numbers together, and all the variables

9v+6

Back to the equation:

-(9v+6)



We get rid of parentheses

-9v-6-21=0

We add all the numbers together, and all the variables

-9v-27=0

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

-9v=27

v=27/-9

v=-3

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