-21=2(v+7)+3v

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Solution for -21=2(v+7)+3v equation: 



-21=2(v+7)+3v

We move all terms to the left:

-21-(2(v+7)+3v)=0



We calculate terms in parentheses: -(2(v+7)+3v), so:

2(v+7)+3v

We add all the numbers together, and all the variables

3v+2(v+7)

We multiply parentheses

3v+2v+14

We add all the numbers together, and all the variables

5v+14

Back to the equation:

-(5v+14)



We get rid of parentheses

-5v-14-21=0

We add all the numbers together, and all the variables

-5v-35=0

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

-5v=35

v=35/-5

v=-7

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