0.017=（x-478.1）/478.1
    3cosx
    (100-x)/7=(180-2x)/12
    100-x/7=180-2x/12
    35+10=40x-5
    log(sinx)
    2x+3＝6
    4080400*4080400-40804000*2x+x²＝x
    1+X∧-1/3=0
    1+X∧1/3=0
    x^4+x^2-1/2=0
    x^4+x^2-1=0
    X+（X*0.4）=10000
    8x∧3-x-2=0
    X+3140707.82-X/1.06*0.06+(3140707.82-X/1.06*0.06)*0.12+(635700000+X)*0.0003=20670000
    X+3589380.56-X/1.06*0.06+(3589380.56-X/1.06*0.06)*0.12+(631800000+X)*0.0003=24570000
    eabsx-2×x^e
    x^2-4x+4=0
    x-x=1
    (x-1)×50=(x+0.5)×60

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