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9v-45=2(v+2)
We move all terms to the left:
9v-45-(2(v+2))=0
We calculate terms in parentheses: -(2(v+2)), so:We get rid of parentheses
2(v+2)
We multiply parentheses
2v+4
Back to the equation:
-(2v+4)
9v-2v-4-45=0
We add all the numbers together, and all the variables
7v-49=0
We move all terms containing v to the left, all other terms to the right
7v=49
v=49/7
v=7
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