-12+8v=5v-7(4-v)

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Solution for -12+8v=5v-7(4-v) equation: 



-12+8v=5v-7(4-v)

We move all terms to the left:

-12+8v-(5v-7(4-v))=0

We add all the numbers together, and all the variables

8v-(5v-7(-1v+4))-12=0



We calculate terms in parentheses: -(5v-7(-1v+4)), so:

5v-7(-1v+4)

We multiply parentheses

5v+7v-28

We add all the numbers together, and all the variables

12v-28

Back to the equation:

-(12v-28)



We get rid of parentheses

8v-12v+28-12=0

We add all the numbers together, and all the variables

-4v+16=0

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

-4v=-16

v=-16/-4

v=+4

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