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x in (-oo:+oo)
(5*x)/4-(1/4) = 3/8 // - 3/8
(5*x)/4-(1/4)-(3/8) = 0
(5*x)/4-1/4-3/8 = 0
5/4*x-5/8 = 0 // + 5/8
5/4*x = 5/8 // : 5/4
x = 5/8/5/4
x = 1/2
x = 1/2
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