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5.7=v/8+7.1
We move all terms to the left:
5.7-(v/8+7.1)=0
We get rid of parentheses
-v/8-7.1+5.7=0
We multiply all the terms by the denominator
-v-(7.1)*8+(5.7)*8=0
We add all the numbers together, and all the variables
-1v-11.2=0
We move all terms containing v to the left, all other terms to the right
-v=11.2
v=11.2/-1
v=-11+0.2/1
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