21+7v=6(-2v-6)

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Solution for 21+7v=6(-2v-6) equation: 



21+7v=6(-2v-6)

We move all terms to the left:

21+7v-(6(-2v-6))=0



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

6(-2v-6)

We multiply parentheses

-12v-36

Back to the equation:

-(-12v-36)



We get rid of parentheses

7v+12v+36+21=0

We add all the numbers together, and all the variables

19v+57=0

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

19v=-57

v=-57/19

v=-3

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