-2x＞3
    2x＞3
    2000x+120000-3000x<102000
    0.3^0.3>1
    sqrt(4m^2-2m)÷(-2)≤3m
    sqrt(4m^2-2m)÷2≤3m
    ((e^(-1.5))*1.5^x)/(!(x))>=0.8
    X2+6x<0
    28-7x＞132+36x
    (135)a+180*(60-a)≤9900
    （x-3）/2+3>=x
    -4+4a>0
    (60-3x)÷2*x≥96
    (20+5x)*(30-x)≥1400
    (20+5x)*(30-x)≥1400
    (20+5x)*(30-x)≥1400
    (20+5x)*(30-x)≥1400
    (20+5x)(30-x)≥1400
    5x-1>3(x-1) (x/2)-1<=7-(3x/2)
    8(x-1)>5x-17 x-6>=(x-10)/2

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