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

Toán Lớp 7: | x + 3 | + 3 = 3 Làm dùm mình với ạ

Toán Lớp 7: | x + 3 | + 3 = 3
Làm dùm mình với ạ

Comments ( 2 )

  1. | x + 3 | + 3 = 3
    | x + 3 |        = 3 – 3
    | x + 3 |        =    0
    ⇒  x + 3 = 0
    ⇒         x = 0 – 3
    ⇒         x  =   -3

  2. \text{| x + 3 | + 3 = 3}
    \text{| x + 3 | = 3 – 3}
    \text{| x + 3 | = 0}
    \text{-> x + 3 = 0}
    \text{x = 0 – 3}
    \text{x = – 3}

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

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