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v(-2)=12-2(-2)-5.8
We move all terms to the left:
v(-2)-(12-2(-2)-5.8)=0
We add all the numbers together, and all the variables
v(-2)-10.2=0
We multiply parentheses
-2v-10.2=0
We move all terms containing v to the left, all other terms to the right
-2v=10.2
v=10.2/-2
v=-5+0.2/2
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