168000+4700+0.06x=110000+2500+0.5x
    168000+4800+0.06x=110000+3000+0.5x
    （x-39020.6）-（（x-10000）*10%-2520-1020.62）=38000
    X+5%X=500000
    （1010+6x）（570+x）=845
    x*99.975%-120.121*100.025%=1/10
    （3.14*0.65*0.65*2x/360）-0.65*0.65*cosx*sinx=0.6
    4x^4-5x^2+1=0
    【（220+260）*21-X】*0.9+18*21=9240
    x*99.975%-120.138*100.025%=1/10
    x*99.975%-120.155*100.025%=1/10
    (91336.496+60403.2+41842x+344.922x+373.6x+206.9496x)*0.85=2262000+345120+4144.26x+298951.05+2460741.39
    （3.14*0.65*2x/360）-0.65*0.65*cosx*sinx=0.6
    （3.14*0.65*x/360）-0.65*0.65*cosx*sinx=0.6
    -1.71=-2*x*0.08-(4*(x-0.08)^2+2*x*0.08*0.08-2*0.08*0.08+1)^0.5
    x-(x/1.01*0.01)-{（x-(x/1.01*0.01)）*0.8-(x/1.01*0.01*0.07/2)}*0.2-(x/1.01*0.01*0.07/2)=8000
    (13*60+0)-x+9677/6+2(7*60+19-x)/3=(43.5*60)
    (12*60+23)-x+9677/6+2(7*60+20-x)/3=(43.5*60)
    (11*60+57)-x+9677/6+2(7*60+21-x)/3=(43.5*60)
    (15*60+18)-x+9677/6+2(7*60+22-x)/3=(43.5*60)

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