20=-3(4v-7)

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Solution for 20=-3(4v-7) equation: 



20=-3(4v-7)

We move all terms to the left:

20-(-3(4v-7))=0



We calculate terms in parentheses: -(-3(4v-7)), so:

-3(4v-7)

We multiply parentheses

-12v+21

Back to the equation:

-(-12v+21)



We get rid of parentheses

12v-21+20=0

We add all the numbers together, and all the variables

12v-1=0

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

12v=1

v=1/12

v=1/12

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