x＋1=2
    0.45x-4.5×6=45
    x=(5485.41×9.99+1016.71×3.02-91.1×22.18-742.55×17.18-1233.99×13.28-1531.41×10.28)/(18.252+4.53-15.5)
    15/2*x+625/(x^2)=9
    1200/x+6000/x^2+6000/x^3-9000=0
    x=(4081.93×8.31+642.53×2.4-91.1×19-742.55×14-1233.99×10.1)/(16+3.6-12.5)
    x=(350*14)/(29-14)
    x=(2533.68×6.08+277.85×1.58-91.1×14.77-742.55×9.77)/(13+2.37-9.5)
    x=(35000*14)/(29-14)
    x=(350*0.14)/(0.29-0.14)
    (x+1)/2-(5+x)/6=3-(x-1)/3
    1200/1.1+6000/1.21+6000/1.331-9000=
    x=(1352.87×3.84+63.68×0.75-91.1×11.66)/(10+1.13-5.5)
    (x+1)/2=3
    (15/2x)+(625/(x^2))=9
    x=(89.6×4×1.41)/(6.0-0.45)
    x=(89.6×8×1.41)/(6.0-0.45)
    x=(1987.76×10^3)/(0.867×0.0298×10^6 )+0.7 (1×260.78×10^6)/(1.0×0.0043×10^9 )
    x(1987.76×10^3)/(0.867×0.0298×10^6 )+0.7 (1×260.78×10^6)/(1.0×0.0043×10^9 )
    x=(1987.76×10^3)/(0.867×0.0298×10^6 )+(0.989×260.78×10^6)/(1.15×0.0043×10^9×(1-0.8×1987.76/21475.94) )

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