2x+√(1-2x)>=-x^2+x+1
    1676-G-(1676-G)*0.06>1000
    abs(x+1)-abs(x-3)>=1
    abs(x+1)+abs(x-3)>=1
    abs(2x+1)+abs(2x-1)>4
    x^2-3X-2018>0
    (-8)^2-4*(a-6)*9>=0
    1-3/2(2x-1)<4
    (x-3)/2-1<(3x-1)/3
    abs((x-1)/(9-x))<=8
    30a+17(50-a)>1470
    x-(x+3)/2<1
    （X^2+5X-6）/（X-1）≥0
    X^2+5X-6≥0
    xe^2x-lnx-1>0
    x-1/2*(x-1/2*(x-1))<2/3*(x-1)
    4-4（k+2）≥0
    4－2/x≥0
    （800÷2）-X＞(800-X)÷2
    x-3＜2*x＋5

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