-(5*k+6)-sqrt((6+5*k)^2-36+20k)<0
    4(3x-4)<=38
    x-(3x/4+x/7)>6
    x-(3x/4+x/7)<6
    264<=8x
    3x+2<25
    3x+4<25
    (52+x+69+90)/4>90
    12+x>37/2
    （lnx）×（e^x）＞（x^2）-1
    （lnx）×e^x＞x^2-1
    lnx×e^x＞x^2-1
    e^xlnx＞x^2-1
    0.5x-0.5
    2x+5<=3(x+2)
    0.5x-1<=7-1.5x
    5x-1>3(x+1）
    3(x-1)<6-2(4x-5)
    4x-3<0
    7x＞-14

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