-1/(x^2)+1/x>0
    x/4≥x-1/3
    3(x+2)＞x+8
    x+2＜4x-1
    2x＞1-x
    3(6x+9)≥8-2(-8x-9)
    3zk-17>-29
    (1/3)y+25≤22
    0.4x-11>2.4x-21
    3(6x+7)≥8-2(5x-9)
    -4x≤-(5/4)
    5x-3>0
    (5/4)x+4≤(9/4)x-1
    5x-12<8x-33
    s+1>2
    7x<-6x-13
    x/2-x≥0
    sqrt(k/2)-sqrt(2*k+1)/2<0.15/sqrt(0.6)
    4x＞x-7/2
    5x<7x+4

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