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-3+10=7v+9
We move all terms to the left:
-3+10-(7v+9)=0
We add all the numbers together, and all the variables
-(7v+9)+7=0
We get rid of parentheses
-7v-9+7=0
We add all the numbers together, and all the variables
-7v-2=0
We move all terms containing v to the left, all other terms to the right
-7v=2
v=2/-7
v=-2/7
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