81=-3(-3v-4)+6

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Solution for 81=-3(-3v-4)+6 equation: 



81=-3(-3v-4)+6

We move all terms to the left:

81-(-3(-3v-4)+6)=0



We calculate terms in parentheses: -(-3(-3v-4)+6), so:

-3(-3v-4)+6

We multiply parentheses

9v+12+6

We add all the numbers together, and all the variables

9v+18

Back to the equation:

-(9v+18)



We get rid of parentheses

-9v-18+81=0

We add all the numbers together, and all the variables

-9v+63=0

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

-9v=-63

v=-63/-9

v=+7

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