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X in (-oo:+oo)
(9*X)/65 = 3/13 // - 3/13
(9*X)/65-(3/13) = 0
(9*X)/65-3/13 = 0
9/65*X-3/13 = 0 // + 3/13
9/65*X = 3/13 // : 9/65
X = 3/13/9/65
X = 5/3
X = 5/3
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