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

Toán Lớp 5: x – 123 = 7 x 3 x + 34 = 4 x6

Toán Lớp 5: x – 123 = 7 x 3 x + 34 = 4 x6

Comments ( 2 )

  1. Answer
    x – 123 = 7 xx 3
    x – 123 = 21
    x = 21 + 123
    x = 144
    $\text{Vậy}$ x = 144
    ________________
    x + 34 = 4 xx 6
    x + 34 = 24
    x = 24 – 34
    x = -10
    $\text{Vậy}$ x = -10
     

  2. x – 123 = 7 xx 3
    x – 123 = 21
    x          = 21 + 123
    x          = 144
    ___________________________
    x + 34 = 4 xx 6
    x + 34 = 24
    x         = 24 – 34
    x         = -10
    $#No copy$
     

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