3x-1>2x-2
    2x+2≤5x+8 4x-10
    3(x+2)≥2x+5 3x-6<2x-4
    x-5≥0 4-3x<5
    5x-2>7(x-2) 0.5x-1≥7-1.5x
    0.7031b-b/1.3＜b/1.3+0.3/1.3
    n^2-n≥306
    -2x<3-1
    0≤2-3x≤1
    2x+4<6/x
    (2-2m^2)/m^2>1
    1-16n^2≤0
    (1/2)^x≤1
    (1/2)x≤1
    (181101+X)/(486179+X)>0.4
    -4*K^2-8K+9>0
    （a-1）²＞4
     X+20≤x²
    3x²+x-10≤0
    2x²-x>0

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