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

Toán Lớp 5: Tìm A : b, A x 5,3 + A x 3,7 + A = 320

Toán Lớp 5: Tìm A :
b, A x 5,3 + A x 3,7 + A = 320

Comments ( 2 )

  1. A xx 5,3 + A xx 3,7 + A = 320
    A xx ( 5,3 + 3,7 + 1 ) = 320
    A xx ( 9 + 1 ) = 320
    A xx 10 = 320
    A = 320 : 10
    A = 32  
     Vậy A = 32

  2. Giải đáp:

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