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3(v-4)-8v=-7
We move all terms to the left:
3(v-4)-8v-(-7)=0
We add all the numbers together, and all the variables
-8v+3(v-4)+7=0
We multiply parentheses
-8v+3v-12+7=0
We add all the numbers together, and all the variables
-5v-5=0
We move all terms containing v to the left, all other terms to the right
-5v=5
v=5/-5
v=-1
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