-9v+42=-7(v-8)

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Solution for -9v+42=-7(v-8) equation: 



-9v+42=-7(v-8)

We move all terms to the left:

-9v+42-(-7(v-8))=0



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

-7(v-8)

We multiply parentheses

-7v+56

Back to the equation:

-(-7v+56)



We get rid of parentheses

-9v+7v-56+42=0

We add all the numbers together, and all the variables

-2v-14=0

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

-2v=14

v=14/-2

v=-7

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