31=2v+7(v-2)

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Solution for 31=2v+7(v-2) equation: 



31=2v+7(v-2)

We move all terms to the left:

31-(2v+7(v-2))=0



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

2v+7(v-2)

We multiply parentheses

2v+7v-14

We add all the numbers together, and all the variables

9v-14

Back to the equation:

-(9v-14)



We get rid of parentheses

-9v+14+31=0

We add all the numbers together, and all the variables

-9v+45=0

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

-9v=-45

v=-45/-9

v=+5

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