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-4v-12=3(v+3)
We move all terms to the left:
-4v-12-(3(v+3))=0
We calculate terms in parentheses: -(3(v+3)), so:We get rid of parentheses
3(v+3)
We multiply parentheses
3v+9
Back to the equation:
-(3v+9)
-4v-3v-9-12=0
We add all the numbers together, and all the variables
-7v-21=0
We move all terms containing v to the left, all other terms to the right
-7v=21
v=21/-7
v=-3
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