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2v+7+8v=-3+9v
We move all terms to the left:
2v+7+8v-(-3+9v)=0
We add all the numbers together, and all the variables
2v+8v-(9v-3)+7=0
We add all the numbers together, and all the variables
10v-(9v-3)+7=0
We get rid of parentheses
10v-9v+3+7=0
We add all the numbers together, and all the variables
v+10=0
We move all terms containing v to the left, all other terms to the right
v=-10
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