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x in (-oo:+oo)
(5/4)*x-3 = (9/4)*x-14 // - (9/4)*x-14
(5/4)*x-((9/4)*x)-3+14 = 0
(5/4)*x+(-9/4)*x-3+14 = 0
11-x = 0 // - 11
-x = -11 // * -1
x = 11
x = 11
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