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12=2(v+20)
We move all terms to the left:
12-(2(v+20))=0
We calculate terms in parentheses: -(2(v+20)), so:We get rid of parentheses
2(v+20)
We multiply parentheses
2v+40
Back to the equation:
-(2v+40)
-2v-40+12=0
We add all the numbers together, and all the variables
-2v-28=0
We move all terms containing v to the left, all other terms to the right
-2v=28
v=28/-2
v=-14
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