-3v-1=-7(v+3)

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Solution for -3v-1=-7(v+3) equation: 



-3v-1=-7(v+3)

We move all terms to the left:

-3v-1-(-7(v+3))=0



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

-7(v+3)

We multiply parentheses

-7v-21

Back to the equation:

-(-7v-21)



We get rid of parentheses

-3v+7v+21-1=0

We add all the numbers together, and all the variables

4v+20=0

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

4v=-20

v=-20/4

v=-5

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