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x in (-oo:+oo)
-4*x-1 = 5/2 // - 5/2
-4*x-(5/2)-1 = 0
-4*x-5/2-1 = 0
-4*x-7/2 = 0 // + 7/2
-4*x = 7/2 // : -4
x = 7/2/(-4)
x = -7/8
x = -7/8
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