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

Toán Lớp 7: 1/2 – (1/3+3/4) ≤ x ≤ 1/24 -(1/8-1/3)

Toán Lớp 7: 1/2 – (1/3+3/4) ≤ x ≤ 1/24 -(1/8-1/3)

Comments ( 2 )

  1. ~ Bạn tham khảo ~
    1/2 – (1/3 + 3/4) le x le 1/24 – ( 1/8-1/3)
    1/2 – 1/3 + 3/4 le x le 1/24 – 1/8 + 1/3
    12/24 – 8/24 + 18/24 le x le 1/24 – 3/24 + 8/24
    22/24 le x le 6/24
    => x in ∅
    Vậy x in ∅
    $#Vịt vàng$

  2. Giải đáp + Lời giải và giải thích chi tiết:
    1/2 – (1/3 + 3/4) ≤ x ≤ 1/24 – (1/8 – 1/3)
    1/2 – 13/12 ≤ x ≤ 1/24 – (-5/24)
    -7/12 ≤ x ≤ 1/4
    -7/12 ≤ x ≤ 3/12
    → x ∈ {-7/12 ; -6/12 ; -5/12 ; -4/12 ; -3/12 ; -2/12 ; -1/12 ; 0 ; 1/12 ; 2/12 ; 3/12}
    → x ∈ {-7/12 ; -1/2 ; -5/12 ; -1/4 ; -1/3 ; -1/6 ; -1/12 ; 0 ; 1/12 ; -1/6 ; -1/4}

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

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