x^2-x*sqrt(22+x^2)=-9
    0.02507*(73-x)*x*61.2=741.1320
    108x-12x²=96
     sinX+tanX=1
    (4/3k-2)/k+2-4/3k+√((4/3k-2)^2/k^2+(2-4/3k)^2)=12
    (4/3k-2)/k+2-4/3k+√((4/3k-2)^2/k^2+(2-4/3k)^2)=0
    3x/2=9/（6x+8）+3/（2x）
    3x/2＝9/（4x+8）+3/2x
    （1000-10x）÷√x=2
    （26.493+x）×2.45＝26.493+69.278-x
    （26.493+x）×2.65＝26.493+69.278-x
    （26.493+x）×2.85＝26.493+69.278-x
    （26.493+x）×3.05＝26.493+69.278-x
    （26.493+x）×3.05＝26.493+70.278-x
    （26.493+x）×2.85＝26.493+70.278-x
    （26.493+x）×2.65＝26.493+70.278-x
    （26.493+x）×2.45＝26.493+70.278-x
    x+30/（1+20%）-x/（1+30%）=4
    a∧3-24a+32=0
    x=2484958/(7021.84-4.96x)

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