4(x-0.3)<0.5x+5.8
    2x+1>3
    -3x-1>3
    2x+3≥x+11
    x+8<4x-1
    (x－7)╱x＞0.55
    (x÷2)×0.382+x > 16000
    (x－2.4)╱x＞0.55
    0.15ln(7.825-0.17x)+0.85ln(9.825-0.03x)>2.251
    （8+0.16x)(10-0.04x)^4>e^11.29
    100<8.5x+6(15-x)≤120
    5485.44+14.33x≤2.2*(747.3+75x)+369.8+0.86*(63+5x)(105.75+9.3x)
    2519+11x^2≤2302+175x+(1111x+46.5x^2+6615)/14.1+x
    3370.543+8.778*x^2≤165*x+（5745.5244+961.27416x+40.1016*x^2）/（14.1+x）
    2519+11x2≤2302+175x+(1111x+46.5x2+6615)/14.1+x2
    2519+11×x≤1872+175×x+1789.7
    5385.435 + 8.778 * x ^ 2 ≤1644.06 + 165 * x + 0.8624 * ( 430 + 5*( 7.5*14.1+9.3x ) *（12.6+x）/ ( 14.1 + x ) )
    28.4%<=1-(1-X)^6
    4185.435+14.32x+1300≤2.2*(747.3+75x)+(6591.75+526.51x)*(13.45344+0.8024x)/(14.1+x)
    5385.435+8.778x^2 ≤1644.06+165x+0.8624*【430+（6662.25+1114.65x+46.5x^2）/（14.1+x）】

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