-2a>-1
    X>(5000-X)*0.8
    X>(5000-X)*80%
    X>(5000-X)*90%
    2a>-1
    2*a*a+1/2*a-1≥0
    2a2+1/2a-1≥0
    (x+0.05)(2x+0.5)<2
    x-1+sqrt(-x/2+1)>1
    x-1-sqrt(-x/2+1)<1
    x-2-(2-x)/2>(x-2)/3
    17+(2k-2)>=2(k+3）
    (2+x)/2>=(2x+1）/3
    4x+6>=5x+5
    (4/3)s-3
    4x+3>9x+6-5x
    14-6n<=2(7-3n)
    8+6x>=7x+2-x
    9+5n<=5n-1
    x+1-(x-1)/2<=(4/3)x-1

Home page << page1020 page1021 page1022 page1023 page1024 ... ... page1035page page1036page page1037page page1038page page1039page >> Last page 1275 pages in total