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

Toán Lớp 4: c) y x 1675 – 674 x y – y = 23000

Toán Lớp 4: c) y x 1675 – 674 x y – y = 23000

Comments ( 2 )

  1. Giải đáp:
     y=23
    Lời giải và giải thích chi tiết:
     c) y xx 1675 – 674 xx y – y=23000
    y xx 1675 – 674 xx y – y xx 1=23000
    y xx (1675-674-1)=23000
    y xx (1001-1)=23000
    y xx 1000=23000
    y=23000 : 1000
    y=23

  2. y xx 1675 – 674 xx y – y = 23000
    y xx (1675 – 674 – 1) = 23000
    y xx 1000 = 23000
    y = 23000 : 1000
    y = 23

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

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