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x in (-oo:+oo)
(1/4)*x-(3/4) = 5/8 // - 5/8
(1/4)*x-(3/4)-(5/8) = 0
(1/4)*x-3/4-5/8 = 0
1/4*x-11/8 = 0 // + 11/8
1/4*x = 11/8 // : 1/4
x = 11/8/1/4
x = 11/2
x = 11/2
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