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-39=5v-4
We move all terms to the left:
-39-(5v-4)=0
We get rid of parentheses
-5v+4-39=0
We add all the numbers together, and all the variables
-5v-35=0
We move all terms containing v to the left, all other terms to the right
-5v=35
v=35/-5
v=-7
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