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-8v+2(v+7)=-4
We move all terms to the left:
-8v+2(v+7)-(-4)=0
We add all the numbers together, and all the variables
-8v+2(v+7)+4=0
We multiply parentheses
-8v+2v+14+4=0
We add all the numbers together, and all the variables
-6v+18=0
We move all terms containing v to the left, all other terms to the right
-6v=-18
v=-18/-6
v=+3
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