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m in (-oo:+oo)
6*m-1/3 = 143/3 // - 143/3
6*m-1/3-(143/3) = 0
6*m-1/3-143/3 = 0
6*m-48 = 0 // + 48
6*m = 48 // : 6
m = 48/6
m = 8
m = 8
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