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x in (-oo:+oo)
50/25 = 18.5*x // - 18.5*x
50/25-(18.5*x) = 0
50/25-18.5*x = 0
2-18.5*x = 0 // - 2
-18.5*x = -2 // : -18.5
x = -2/(-18.5)
x = 0.10810811
x = 0.10810811
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