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2v-7=-3(v+9)
We move all terms to the left:
2v-7-(-3(v+9))=0
We calculate terms in parentheses: -(-3(v+9)), so:We get rid of parentheses
-3(v+9)
We multiply parentheses
-3v-27
Back to the equation:
-(-3v-27)
2v+3v+27-7=0
We add all the numbers together, and all the variables
5v+20=0
We move all terms containing v to the left, all other terms to the right
5v=-20
v=-20/5
v=-4
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