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-70=2+8v
We move all terms to the left:
-70-(2+8v)=0
We add all the numbers together, and all the variables
-(8v+2)-70=0
We get rid of parentheses
-8v-2-70=0
We add all the numbers together, and all the variables
-8v-72=0
We move all terms containing v to the left, all other terms to the right
-8v=72
v=72/-8
v=-9
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