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1-8v=2v-9
We move all terms to the left:
1-8v-(2v-9)=0
We get rid of parentheses
-8v-2v+9+1=0
We add all the numbers together, and all the variables
-10v+10=0
We move all terms containing v to the left, all other terms to the right
-10v=-10
v=-10/-10
v=1
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