7v+21=-5(v+3)

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Solution for 7v+21=-5(v+3) equation: 



7v+21=-5(v+3)

We move all terms to the left:

7v+21-(-5(v+3))=0



We calculate terms in parentheses: -(-5(v+3)), so:

-5(v+3)

We multiply parentheses

-5v-15

Back to the equation:

-(-5v-15)



We get rid of parentheses

7v+5v+15+21=0

We add all the numbers together, and all the variables

12v+36=0

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

12v=-36

v=-36/12

v=-3

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