-18=6v+7(v+3)

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Solution for -18=6v+7(v+3) equation: 



-18=6v+7(v+3)

We move all terms to the left:

-18-(6v+7(v+3))=0



We calculate terms in parentheses: -(6v+7(v+3)), so:

6v+7(v+3)

We multiply parentheses

6v+7v+21

We add all the numbers together, and all the variables

13v+21

Back to the equation:

-(13v+21)



We get rid of parentheses

-13v-21-18=0

We add all the numbers together, and all the variables

-13v-39=0

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

-13v=39

v=39/-13

v=-3

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