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X in (-oo:+oo)
4/6 = X/3.45 // - X/3.45
4/6-(X/3.45) = 0
4/6-0.28985507*X = 0
2/3-0.28985507*X = 0 // - 2/3
-0.28985507*X = -2/3 // : -0.28985507
X = -2/3/(-0.28985507)
X = 2.30000003
X = 2.30000003
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