abs(2y-4)=abs(-y+3)-1
    －2sin2x+√3=0
    100x+x+200
    296x^2-2738x+1295
    296x^2-2738x+129
    (-192*x^8)-464*x^6+sqrt(x^2+3)*sqrt(3*x^2+1)*(338*x^5+288*x^3+274*x)+464*x^2+192=0
    72/（4+2）*4=x
    √3x+x=100√3
    70%X+X=3.6
    x^2-(12-6√3)x=-9
    x^2-(12-6√3）^2=-9
    3x*2x
    x^2-72*x+36*32=0
    90－3/2X＋X
    x-28%x=29.52
    110-X =0.1x
    110-x=0 1x
    x^2-4=0
    （102+x）÷（168+x）=0.168
    3x^x-2x^4+56x^3-4x^2-5x+1=1345

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