x+6/1-x≥0
    abs(x-5)-abs(2x+3)<1
    lnx/x^(1/8)>3
    lnx/x^(1/8)>2
    lnx/x^(1/8)>1
    -3x²+4x+15≤0
    162-3x≥0
    －2X＾2＋X＋3≥0
    2x＾2－X－6＞0
    a×a×a-a<0
    3x^3-3<=x
    -1<-0.5
    -1>-0.5
    -1<-x
    4x^-8x+4＞0
    x^2+6x+1<0
    5400x^2-5400x-10000<0
    7x^2-22x+15>0
    5400x^2-5400-10000<0
    9m^2-4m-12<0

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