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X in (-oo:+oo)
X/29 = 8.61 // - 8.61
X/29-8.61 = 0
1/29*X-8.61 = 0 // + 8.61
1/29*X = 8.61 // : 1/29
X = 8.61/1/29
X = 249.68999001
X = 249.68999001
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