15-v=-7(1-3v)

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Solution for 15-v=-7(1-3v) equation: 



15-v=-7(1-3v)

We move all terms to the left:

15-v-(-7(1-3v))=0

We add all the numbers together, and all the variables

-v-(-7(-3v+1))+15=0

We add all the numbers together, and all the variables

-1v-(-7(-3v+1))+15=0



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

-7(-3v+1)

We multiply parentheses

21v-7

Back to the equation:

-(21v-7)



We get rid of parentheses

-1v-21v+7+15=0

We add all the numbers together, and all the variables

-22v+22=0

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

-22v=-22

v=-22/-22

v=1

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