4000*(20-y)-2500*(30+2y)<=160000
    2*x*（100+x)<1
    2*x*（100-x)<1
    x*4 > 35
    X*0.9>1.15
    1.35*（0.9-X）>1.15
    10x(1+0.01x)＞10000
    8x(1+0.01x)＞10000
    5x(1+0.01x)＞10000
    5（x-1) >(3+1.1)(x-1)+1.65+3+2.05
    5（x-1) >(3+1.1)(x-1)+1.65+3+2.2
    5（x-1) >(3+1.1)(x-1)+1.65+3+(3+1.1)/2
    5（x-1) >(3+1.1)x+1.65+3
    5（x-1)>(3+1.1)(x+1)+1.65
    x+3>1 2(x-1)<=4
    x+3>1
    8×（0.2-x)>27×(0.3-x)
    27×（0.2-x)>8×(0.3-x)
    0.82x+1.15>1+x
    0.82+1.15x>1+x

Home page << page1039 page1040 page1041 page1042 page1043 ... ... page1054page page1055page page1056page page1057page page1058page >> Last page 1275 pages in total