(x+5)/2-1<(3x+2)/3
    5x+2>3(x-1)
    (X-1)/3>=X/2-1
    1/2*x-1<=7-3/2*x
    1/2*x-1<=7-3/2*x
    abs(x^(1/x))<1
    （1-x）^2>1
    -4082750+3000000+W-W*10%/4-450000大于等于300000
    x-6≤2-x x-1>3x÷2
    X^3-4X+3>0
    x3-4x+3>0
    150b+90(200-b)＜22000
    150b+90(200-b)>21000
    x大于等于4
    5x²－x－6＞0
    1-x^8>0.998(1-X)
    tanx＞e^x-1
    x^x<6
    (960-10n)/sqrt(100n)>=1.645
    （3）x＞1

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