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-5v+2(v+2)=31
We move all terms to the left:
-5v+2(v+2)-(31)=0
We multiply parentheses
-5v+2v+4-31=0
We add all the numbers together, and all the variables
-3v-27=0
We move all terms containing v to the left, all other terms to the right
-3v=27
v=27/-3
v=-9
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