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X in (-oo:+oo)
9/16 = X/45 // - X/45
9/16-(X/45) = 0
9/16-1/45*X = 0 // - 9/16
-1/45*X = -9/16 // : -1/45
X = -9/16/(-1/45)
X = 405/16
X = 405/16
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