3x-1>2x+3 x-1<2x+1
    2x/7-0.5<(6x-5)/14
    -4m^{2}-6m-1>0
    x*18>x*2/3*12
    abs（1200x+4000/3-(1000sqrt(11)x)/5）/sqrt(x^2+1)>700
    50n＞12n＋2n^2-n+98
    n^2＋n-4042＞0
    n^2+n+4042＞0
    （500-100/（60000-X））×0.75＋（500-100/（20000-X））×0.25≥500-100/30000
    -2x≥3x （2-x）/2>-1
    2x-1>-3
    1-x≥0
    （1+3x）/2>2x-1
    1000*x^2<2^x
    2(x+4)≤5（x+2）
    1.155*85<200y*0.001
    2x-2＞3x-4
    4-2x＞4x-3
    2x-1＜4x+12
    0

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