3=-7v+3(v-7)

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



3=-7v+3(v-7)

We move all terms to the left:

3-(-7v+3(v-7))=0



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

-7v+3(v-7)

We multiply parentheses

-7v+3v-21

We add all the numbers together, and all the variables

-4v-21

Back to the equation:

-(-4v-21)



We get rid of parentheses

4v+21+3=0

We add all the numbers together, and all the variables

4v+24=0

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

4v=-24

v=-24/4

v=-6

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