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

Toán Lớp 6: Tìm x : 2x-49=5.3 mũ 2 Help me !!!!

Toán Lớp 6: Tìm x :
2x-49=5.3 mũ 2
Help me !!!!

Comments ( 2 )

  1. 2x – 49 = 5 . 3^2
    2x – 49 = 5 . 9
    2x – 49 = 45
    2x        = 45 + 49
    2x        = 94
      x        =  94 : 2
      x        = 47
    vậy x = 47
     

  2. 2x – 49 = 5.$3^2$
    =) 2x – 49 = 5.9
    =) 2x – 49 = 45
    =) 2x           = 45 + 49
    =) 2x            = 94
    =) x              = 94 : 2 
    =) x              = 47
    Vậy x = 47 

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

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