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

Toán Lớp 6: tìm x 14 x-1 phần=phần x 4

Toán Lớp 6: tìm x
14 x-1
phần=phần
x 4

Comments ( 1 )

  1.     $\frac{14}{x}$=$\frac{x-1}{4}$ 
    ⇔ x(x-1)=14.4
    ⇔ x(x-1)=56
    Ta có : 56= $2^{3}$ .7
                    = 8.7
              ⇒ x=8
        Vậy x=8
     

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