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x in (-oo:+oo)
(5*x)/2-(x/6) = 14 // - 14
(5*x)/2-(x/6)-14 = 0
7/3*x-14 = 0 // + 14
7/3*x = 14 // : 7/3
x = 14/7/3
x = 6
x = 6
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