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-8-5=-9v
We move all terms to the left:
-8-5-(-9v)=0
We add all the numbers together, and all the variables
-(-9v)-13=0
We get rid of parentheses
9v-13=0
We move all terms containing v to the left, all other terms to the right
9v=13
v=13/9
v=1+4/9
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