(8215+x)/(14025+x)＞0.6
    (8215+x)/(14025+x)＞0.59
    log（x,2）>3
    log（x,27）>2
    (1.3a-158)/158>(a-117.12)/117.12
    5(x-2)-1≤4(1+x) (1) x-1>6(x+3) (2)
    5(x-2)-1≤4(1+x) x-1>6(x+3)
    5(x-2)-1≤4(1+x)
    x-1>6(x+3)
    1-(4x-5)/2<=5/6-(4/3)x
    (2-3x)/4>=(5x+1)/3
    0.01x>0.2(x-77)
    （140500+a）÷17＞（219400+a）÷26
    （140500+x）÷17>（219400+x）÷26
    2(5x-1)+2>3（x+5)
    -4082750+3000000-450000+a-a*10%/4>300000
    2（x-4)≤x-6 4+x>7x-24 16x>24x-32 9x>7x-6 （x-7）/15<（x-2）/5 1/2x-1≤3-3/2x
    2（x-4)≤x-6 4+x>7x-24
    340*x/(0.866*x+353)+((x/2)^2+(0.866*x+353)^2)^(0.5)>465+x
    (x+8)*1.25*0.95>x*1.25

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