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4=2(v-7)
We move all terms to the left:
4-(2(v-7))=0
We calculate terms in parentheses: -(2(v-7)), so:We get rid of parentheses
2(v-7)
We multiply parentheses
2v-14
Back to the equation:
-(2v-14)
-2v+14+4=0
We add all the numbers together, and all the variables
-2v+18=0
We move all terms containing v to the left, all other terms to the right
-2v=-18
v=-18/-2
v=+9
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