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40=10-8v
We move all terms to the left:
40-(10-8v)=0
We add all the numbers together, and all the variables
-(-8v+10)+40=0
We get rid of parentheses
8v-10+40=0
We add all the numbers together, and all the variables
8v+30=0
We move all terms containing v to the left, all other terms to the right
8v=-30
v=-30/8
v=-3+3/4
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