0.5143x-0.0589sin(2πx)-0.060125=0.2122(sin(πx))^3+0.0374sin(πx)+0.0374sin(1.25π-2πx)
    2x=1
    x*1.49=2.68
    （1+x）^5=3.9
    a^2-128a+6400=0
    93+x➗165+x=0.618
    x^2-3x-36=0
    x^2-36*x+320=0
    x²-3^2x-3=0
    x²-3^2-3=0
    120592−22811x+25648−5158.4x=24×107.206
    10000/(x)+15100/(x+99*0.16)=150
    x*0.17-x*0.11=300
    x/x=0.17
    x-500*0.1=100
    x-500*0.1=0.1
    x-500*0.1
    x²-2x+3/4＝0
    x²-2x+4/3＝0
    x²-2x+4/11＝0

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