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128=-v+197
We move all terms to the left:
128-(-v+197)=0
We add all the numbers together, and all the variables
-(-1v+197)+128=0
We get rid of parentheses
1v-197+128=0
We add all the numbers together, and all the variables
v-69=0
We move all terms containing v to the left, all other terms to the right
v=69
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