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

Toán Lớp 5: (x-5) x (1995 x 1996 + 1996 x 1997) = 1234 x 5678 x (630 – 315 x2):1996

Toán Lớp 5: (x-5) x (1995 x 1996 + 1996 x 1997) = 1234 x 5678 x (630 – 315 x2):1996

Comments ( 2 )

  1. Giải đáp:
     x= 5
    Lời giải và giải thích chi tiết:
     (x-5)x7968032= 7006652x 0: 1996
    (x-5)x 7968032= 0
    x-5= 0: 7968032
    x-5= 0
    x= 0+5
    x=5

    Chúc bạn học tốt!

  2.       (x-5) × (1995 × 1996 + 1996 × 1997) = 1234 × 5678 × (630 – 315 × 2):1996
    => (x-5) × (1995 × 1996 + 1996 × 1997) = 1234 × 5678 × (630 – 630):1996
    => (x-5) × (1995 × 1996 + 1996 × 1997) = 1234 × 5678 × 0:1996
    => (x-5) × (1995 × 1996 + 1996 × 1997) = 0
    => x-5=0
    => x=0+5
    => x=5

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