2x+1/3≥x-1
    x-3(x-2)<4
    4(x+1)≤7x+10
    x-1/2-x<3x+1
    x+5/2-1<3x+2/2
    (60-1.5*x)/x^1/2 >1.645
    x+7/2>x+2
    2(x-1)≤x-4
    60-1.5*x >1.645*x^1/2
    1+4x/3>x-1
    60-1.5x>1.645x^1/2
    60-1.5x^2>1.645x
    3∧x>2∧x
    0.25x^2+x-5/3<0
    3-2（x-1）
    (30-25)*x+(60-45)*(120-x)≤((25*x+45*(1200-x))*0.3
    -(30-25)*x+(60-45)*(120-x)≤((25*x+45*(1200-x))*0.3
    3x-4>2(x-3) (x+4)÷3≥x
    3x-4>2(x-3) x+4÷3≥x
    3x-4>2(x-3) x+4/3≥x

Home page << page1213 page1214 page1215 page1216 page1217 ... ... page1228page page1229page page1230page page1231page page1232page >> Last page 1276 pages in total