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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

3v+7v+49+21=0

We add all the numbers together, and all the variables

10v+70=0

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

10v=-70

v=-70/10

v=-7

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