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X in (-oo:+oo)
X/5.7 = -8 // + 8
X/5.7+8 = 0
0.1754386*X+8 = 0 // - 8
0.1754386*X = -8 // : 0.1754386
X = -8/0.1754386
X = -45.59999909
X = -45.59999909
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