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2v-4=-4(v-5)
We move all terms to the left:
2v-4-(-4(v-5))=0
We calculate terms in parentheses: -(-4(v-5)), so:We get rid of parentheses
-4(v-5)
We multiply parentheses
-4v+20
Back to the equation:
-(-4v+20)
2v+4v-20-4=0
We add all the numbers together, and all the variables
6v-24=0
We move all terms containing v to the left, all other terms to the right
6v=24
v=24/6
v=4
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