x < 0.533*(2x+9)
    5a-1>3(a+1) 0.5a-1<7-1.5a
    0<4x+20-8(x-1)<8
    4x+20-8(x-1)>0
    x-3(x-2)>=4 (2x-1)/5>(x+1)/2
    2x+5<=3(x+2) 3x-1>=2x
    103z+56（20-z）<=1550
     (1/2)*(x-3)+(1/3)*(x+sqrt2)<(1/6)*(x-sqrt98)+3
    90x+210（30-x）＞3300
    2+0.7（x-1）*2＜1.6x
    2+1.4x＜1.6x
    3x+28-x>=43
    2+0.7x>0.8x
    1.5x+2(10-x)*0.8>=15.6
    0.25+2x<=8-x/4
    abs(4-x^2)>2
    200x+240(100-x)<=22500
    200x+240(100-x)>=22400
    x+2√x≥8
    5x<9

Home page << page485 page486 page487 page488 page489 ... ... page500page page501page page502page page503page page504page >> Last page 1276 pages in total