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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: $\frac{9x}{2x-1}$ +$\frac{x-5}{2x-1}$

Toán Lớp 8: $\frac{9x}{2x-1}$ +$\frac{x-5}{2x-1}$

Comments ( 2 )

  1. Giải đáp:=9x+x-5/2x-1
               =10x-5/2x-1=5(2x-1)/2x-1=5
    Lời giải và giải thích chi tiết:
     

  2. 9x/(2x-1)+(x-5)/(2x-1)
    =(9x+x-5)/(2x-1)
    =(10x-5)/(2x-1)
    =5.(2x-1)/(2x-1)
    =5
     

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222-9+11+12:2*14+14 = ? ( )

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