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-21.9=2.7+v/6
We move all terms to the left:
-21.9-(2.7+v/6)=0
We add all the numbers together, and all the variables
-(v/6+2.7)-21.9=0
We get rid of parentheses
-v/6-2.7-21.9=0
We multiply all the terms by the denominator
-v-(2.7)*6-(21.9)*6=0
We add all the numbers together, and all the variables
-1v-147.6=0
We move all terms containing v to the left, all other terms to the right
-v=147.6
v=147.6/-1
v=-147+0.59999999999999/1
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