40=-4(v-1)-8(v+3)

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Solution for 40=-4(v-1)-8(v+3) equation: 



40=-4(v-1)-8(v+3)

We move all terms to the left:

40-(-4(v-1)-8(v+3))=0



We calculate terms in parentheses: -(-4(v-1)-8(v+3)), so:

-4(v-1)-8(v+3)

We multiply parentheses

-4v-8v+4-24

We add all the numbers together, and all the variables

-12v-20

Back to the equation:

-(-12v-20)



We get rid of parentheses

12v+20+40=0

We add all the numbers together, and all the variables

12v+60=0

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

12v=-60

v=-60/12

v=-5

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