81=-7+8(v+3)

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Solution for 81=-7+8(v+3) equation: 



81=-7+8(v+3)

We move all terms to the left:

81-(-7+8(v+3))=0



We calculate terms in parentheses: -(-7+8(v+3)), so:

-7+8(v+3)

determiningTheFunctionDomain
8(v+3)-7

We multiply parentheses

8v+24-7

We add all the numbers together, and all the variables

8v+17

Back to the equation:

-(8v+17)



We get rid of parentheses

-8v-17+81=0

We add all the numbers together, and all the variables

-8v+64=0

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

-8v=-64

v=-64/-8

v=+8

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