(x-399)/x*100%>45%
    a^4=a^2＋1/4×a^4
    99.95*X+4.79>77.77*X+8.24
    1000+160≥x
    （x-1000）+160≥x
    75x≥45
    88（30-x）+117x≤3200
    0.5x^3-5.5x^2+14x>90
    150000+25000X≥150000×1.125^X
    150000+25000X = 150000×1.125^X
    -3x^2+24x≥45
    -0.5x+4.5-8/x>0
    6x−8x=20
    6x+240−8x=220
    a^2-（4/a）≥0
    4（-x/2）+2x+1=1
    x^2-4x+3＜0
    2x^2-x-3＞0
    3x-1-2（x-5）≤0
    3x-1：x-5≤2

Home page << page1090 page1091 page1092 page1093 page1094 ... ... page1105page page1106page page1107page page1108page page1109page >> Last page 1276 pages in total