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159=9v-4
We move all terms to the left:
159-(9v-4)=0
We get rid of parentheses
-9v+4+159=0
We add all the numbers together, and all the variables
-9v+163=0
We move all terms containing v to the left, all other terms to the right
-9v=-163
v=-163/-9
v=18+1/9
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