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X in (-oo:+oo)
X/52 = 58/104 // - 58/104
X/52-(58/104) = 0
X/52-29/52 = 0
1/52*X-29/52 = 0 // + 29/52
1/52*X = 29/52 // : 1/52
X = 29/52/1/52
X = 29
X = 29
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