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(12^2)/(2.4+12)-((2-2.4)/0.8) = 0
144/(2.4+12)-((2-2.4)/0.8) = 0
144/14.4-((2-2.4)/0.8) = 0
10-((2-2.4)/0.8) = 0
10-(-0.4/0.8) = 0
0.5+10 = 0
10.5 = 0
L <> R
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