7(-8+v)=2v-21

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Solution for 7(-8+v)=2v-21 equation: 



7(-8+v)=2v-21

We move all terms to the left:

7(-8+v)-(2v-21)=0

We add all the numbers together, and all the variables

7(v-8)-(2v-21)=0

We multiply parentheses

7v-(2v-21)-56=0

We get rid of parentheses

7v-2v+21-56=0

We add all the numbers together, and all the variables

5v-35=0

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

5v=35

v=35/5

v=7

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