20=3v+5(v-4)

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Solution for 20=3v+5(v-4) equation: 



20=3v+5(v-4)

We move all terms to the left:

20-(3v+5(v-4))=0



We calculate terms in parentheses: -(3v+5(v-4)), so:

3v+5(v-4)

We multiply parentheses

3v+5v-20

We add all the numbers together, and all the variables

8v-20

Back to the equation:

-(8v-20)



We get rid of parentheses

-8v+20+20=0

We add all the numbers together, and all the variables

-8v+40=0

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

-8v=-40

v=-40/-8

v=+5

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