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X in (-oo:+oo)
X/3.1 = 14 // - 14
X/3.1-14 = 0
0.32258065*X-14 = 0 // + 14
0.32258065*X = 14 // : 0.32258065
X = 14/0.32258065
X = 43.39999935
X = 43.39999935
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