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

Toán Lớp 6: 96 – 3. (x + 1) = 42 Tìm x. Giúp mình với

Toán Lớp 6: 96 – 3. (x + 1) = 42
Tìm x. Giúp mình với

Comments ( 2 )

  1. 96 – 3. (x + 1) = 42
          3 . (x + 1) = 96 – 42 = 54
                x + 1   = 54 : 3 = 18
                    x      = 18 – 1
                    x      = 17
    Vậy x = 17

  2. 96 – 3( x + 1) = 42
    3( x + 1) = 96 – 42
    3( x + 1) = 54
    ( x + 1) = 54 : 3
    x + 1 = 18
    x = 18 – 1
    x = 17
    Vậy x = 17
    #caty09
     

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