3（x-2）-2（x-3）=16
    40x-3x*x=132
    e^(3.18*x)*sin(x-17.44)=-0.2997
    x(x－1）＝3000
    SIN(45*3.14159/180)*5
    62x²+243x+232=0
    （340+X）*0.6=340+X-240
    -lgT＝0.5
    2d^3+8d^2+13d+5=0
    x^4+2x^2+x=0
    sin(-y)*e^(10/3.14*y)=sin(y-17.44)
    x^2－6x＋12＝x
    10000/x+10000/(x+10)=150
    1000/x+1000/(x+10)=150
    sinx/cos3x
    x=1.85*(1-0.2804*(9.8692*x-1)*(2.804*(0.402+23.71*x))^-0.5)^7.5648
    x=1.55*(1-0.2725*(9.8692*x-1)*(2.804*(0.402+23.71*x))^-0.5)^7.7143
    x*1.45+（225-x）*1.24=300
    6X2+4x=40
    7x+42X3=140

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