15=-3(-1+v)

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



15=-3(-1+v)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

-3(v-1)

We multiply parentheses

-3v+3

Back to the equation:

-(-3v+3)



We get rid of parentheses

3v-3+15=0

We add all the numbers together, and all the variables

3v+12=0

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

3v=-12

v=-12/3

v=-4

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