81=9(v+5)

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Solution for 81=9(v+5) equation: 



81=9(v+5)

We move all terms to the left:

81-(9(v+5))=0



We calculate terms in parentheses: -(9(v+5)), so:

9(v+5)

We multiply parentheses

9v+45

Back to the equation:

-(9v+45)



We get rid of parentheses

-9v-45+81=0

We add all the numbers together, and all the variables

-9v+36=0

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

-9v=-36

v=-36/-9

v=+4

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