-66=3(3+5v)+3(7v-1)

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Solution for -66=3(3+5v)+3(7v-1) equation: 



-66=3(3+5v)+3(7v-1)

We move all terms to the left:

-66-(3(3+5v)+3(7v-1))=0

We add all the numbers together, and all the variables

-(3(5v+3)+3(7v-1))-66=0



We calculate terms in parentheses: -(3(5v+3)+3(7v-1)), so:

3(5v+3)+3(7v-1)

We multiply parentheses

15v+21v+9-3

We add all the numbers together, and all the variables

36v+6

Back to the equation:

-(36v+6)



We get rid of parentheses

-36v-6-66=0

We add all the numbers together, and all the variables

-36v-72=0

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

-36v=72

v=72/-36

v=-2

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