-81=2(-7-6v)-7

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Solution for -81=2(-7-6v)-7 equation: 



-81=2(-7-6v)-7

We move all terms to the left:

-81-(2(-7-6v)-7)=0

We add all the numbers together, and all the variables

-(2(-6v-7)-7)-81=0



We calculate terms in parentheses: -(2(-6v-7)-7), so:

2(-6v-7)-7

We multiply parentheses

-12v-14-7

We add all the numbers together, and all the variables

-12v-21

Back to the equation:

-(-12v-21)



We get rid of parentheses

12v+21-81=0

We add all the numbers together, and all the variables

12v-60=0

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

12v=60

v=60/12

v=5

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