5=gif
    2m-4=-（3m-1）
    x²/1-x=0.0014
    (1/x)+(1/(x^2))+(1-(1/x))=0
    3.0157=（（25.5755*0.8962（x+0.1））/（1+0.8962（x+0.1））*（（100-10.81-1.96）/100）*（1/(1+0.31*1.96）+（（2.07（x+0.1））/（1.42*0.101325））
    (400-8/5*x)^3=x
    x^6-6x^4-12x^3+12x^2-72x+28=0
    s^2+3s+1.5
    0=x²-2x-3
    (8-x)²=x²+16
    sqrt(15)-sqrt(24-y^2)=sqrt(36-y^2)-sqrt(15)
    59x+(90-x)66=4900
    (20-a)(2a+8)=288
    X^2+X-3/2=
    59x+66(50-x)=3160
    (79-5)x+(88-66)(50-x)=3160
    (15-a)(4a+256)=4200
    256(x+1)(x+1)=400
    y×(50-0.5y)=0
    y×(50-0.25y)=0

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