475655x＞4544
    -x＾2+6≥x
    0.5x+1.5(30-x)≥28
    0.5x+1.5(30-x)≤30
    x*x+9>0
    50(96-a)+80a<=5720
    1-3x＜10
    2x+3≤7
    6x＞x+10
    2/3-1/4 ≤3/2x
    3x+2 ≤3/2x+8
    2/3x-1/4 ≤3/2x
    3x+2 ≤3/2+8
    4x+5>6x-7
    -2.5>-5p
    1y<-2/3
    1<-3/2
    -3m>6
    (x+22)/3>=2-x
    12x+6(10-x)>=75

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