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

Toán Lớp 6: 5/12.x-1/4.x=-13/18 giúp mình với

Toán Lớp 6: 5/12.x-1/4.x=-13/18 giúp mình với

Comments ( 2 )

  1. 5/12.x-1/4.x=-13/18

    (5/12-1/4).x=-13/18

    (5/12-3/12).x=-13/18

    1/6.x             =-13/18

    x =-13/18:1/6

    x=- 78/18

    x= 13/3

     Vậy :x= 13/3

  2. 5/12.x-1/4.x=-13/18
    x.(5/12-1/4)=-13/18
    x.(5/12-3/12)=-13/18
    x . 2/12=-13/18
    x . 1/6=-13/18
    x=-13/18:1/6
    x=-13/18 . 6/1
    x=-13/3
    Vậy x=-13/3
     

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

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