7v+21=-15v+5+8v

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Solution for 7v+21=-15v+5+8v equation: 



7v+21=-15v+5+8v

We move all terms to the left:

7v+21-(-15v+5+8v)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

7v+7v-5+21=0

We add all the numbers together, and all the variables

14v+16=0

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

14v=-16

v=-16/14

v=-1+1/7

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