-20+4v=-7(3v-9)

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Solution for -20+4v=-7(3v-9) equation: 



-20+4v=-7(3v-9)

We move all terms to the left:

-20+4v-(-7(3v-9))=0



We calculate terms in parentheses: -(-7(3v-9)), so:

-7(3v-9)

We multiply parentheses

-21v+63

Back to the equation:

-(-21v+63)



We get rid of parentheses

4v+21v-63-20=0

We add all the numbers together, and all the variables

25v-83=0

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

25v=83

v=83/25

v=3+8/25

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