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20-8v=20-8v
We move all terms to the left:
20-8v-(20-8v)=0
We add all the numbers together, and all the variables
-8v-(-8v+20)+20=0
We get rid of parentheses
-8v+8v-20+20=0
We add all the numbers together, and all the variables
=0
v=0/1
v=0
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