X+X+(x+25)=1410
    X+X+(x+50)=1410
    1.94÷2x=27.52
    250/200+X/1000+（573-X）/2000+150/89.14=3.38
    ((1+x)^2-2.225^2)^(1/2)+((4+x)^2-4^2)^(1/2)=(5.5^2-2.225^2)^(1/2)
    1.94x÷2=27.52
    3x∧5-7∧4+8x∧3-8x∧2+5x-1
    3x*5-7*4+8x*3-8x*2+5x-1
    x^2/（0.1-x）=0.0536
    x^2/（0.1-x）=0.00536
    (247500xX-192,539.925xX-100000)÷（247500xX）=0.1715
    (247500xX-192,539.925X-100000)÷（247500xX）=0.1715
    (247500*X-192,539.925*X-100000)÷（247500*X）=0.1715
    (247500*X-192,539.925*X-100000)/（247500*X）=0.1715
    (247500*X-192,539.925*X-100000)/247500*X=0.1715
    (247500*X-192,539.925*X-100000)/247500*X=0.8285
    (247500*X-192,539.925*X-100000)/247500*X=0.8285
    (247500*X-192,539.925*X-100000)/247500*X=0.8285
    (247500*X-192,539.925*X-100000)/247500*X=0.8285
    (247500*X-192,539.925*X-300000)/247500*X=0.8285

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