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-39=8v+7(v+3)
We move all terms to the left:
-39-(8v+7(v+3))=0
We calculate terms in parentheses: -(8v+7(v+3)), so:We get rid of parentheses
8v+7(v+3)
We multiply parentheses
8v+7v+21
We add all the numbers together, and all the variables
15v+21
Back to the equation:
-(15v+21)
-15v-21-39=0
We add all the numbers together, and all the variables
-15v-60=0
We move all terms containing v to the left, all other terms to the right
-15v=60
v=60/-15
v=-4
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