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