x-1>3 x+4>2x
    7>x*√x
    7
    x^2-2x+2>=0
    200x-(0.05x^(2)+60x+50000) >0
    0.2x-(0.05x^(2)+60x+50000) >0
    0.2x-(0.05x+60x+50000)>0
    （x+5）（x+2）≤0
    1.2*5+3>5+5
    (2.5x+3)*0.7>x+3
    （2.5x+3)*0.7>x
    (24×115.8×h+4×180×π×1.8×h+180×h×(12.6×2+10×2))/(10×(1335.95-1328.23+h)×115.8)≥1.15
    1+x<=3
    1+x/2+1-x/3≥1
    4×t*2+24×t+11<0
    4×t*2+8×t-5<0
     -4082750+3000000+W-W*10%/4-450000 >= 300000
     -78698 + 70000 + w - w * 0.02 - 1750 >= 8000
    -78698+70000+w-w*0.02-1750>=8000
    2F*（141*sin10.2+303.74*cos10.20）＞3900×149.9

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