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X in (-oo:+oo)
X/19.7 = 144/68.7 // - 144/68.7
X/19.7-(144/68.7) = 0
X/19.7-2.09606987 = 0
0.05076142*X-2.09606987 = 0 // + 2.09606987
0.05076142*X = 2.09606987 // : 0.05076142
X = 2.09606987/0.05076142
X = 41.29257751
X = 41.29257751
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