-20=-2v+5(v-7)

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Solution for -20=-2v+5(v-7) equation: 



-20=-2v+5(v-7)

We move all terms to the left:

-20-(-2v+5(v-7))=0



We calculate terms in parentheses: -(-2v+5(v-7)), so:

-2v+5(v-7)

We multiply parentheses

-2v+5v-35

We add all the numbers together, and all the variables

3v-35

Back to the equation:

-(3v-35)



We get rid of parentheses

-3v+35-20=0

We add all the numbers together, and all the variables

-3v+15=0

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

-3v=-15

v=-15/-3

v=+5

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