X-X*0.065-(X+110000)*0.0003=110000
    0.3508sinx-x+1.6995=0
    0.4040sinx-x+1.5603=0
    4.682sinx-x+0.667=0
    4-2x=2x^2
    8x-x^2=4
    18968.29=0.0002a^2+1.2527a
    0.5144sinx-x+1.2714=0
    0.1755sinx-x+2.1586=0
    x^6-6x^5-15x^4-20x^3-15x^2-6x-1=0
    x^6-6x^5-15x^4-20x^3+15x^2-6x-1=0
    0.2295sinx-x+2.017=0
    0.276sinx-x+0.603π=0
     9x+70=4 x+200
    9x+70+40x+200
    X∧2-1.826X+（1.413）∧2=0
    （1.413-2000x）∧2=2000x
    500000=157728/(1+x)+157728/(1+x)^2+157728/(1+x)^3+157728/(1+x)^4
    x^7+x^6-23x^5-31x^4+73x^3+69x^2-8x-9=0
    x^7-x^6-55x^5+110x^4+428x^3-491x^2-441x+44=0

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