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

Toán Lớp 6: b, ( x – 10 ): 18 = 6 c, 114: (8x – 76) = 36 d, 12: (3x – 7) + 34 = 40 f, 1234 – x = 567

Toán Lớp 6: b, ( x – 10 ): 18 = 6
c, 114: (8x – 76) = 36
d, 12: (3x – 7) + 34 = 40
f, 1234 – x = 567

Comments ( 2 )

  1. b, ( x – 10 ): 18 = 6
    x-10=6.18
    x-10=108
    x=108+10
    x=118
    $Vậy….$
    c, 114: (8x – 76) = 36
    8x-76=19/6
    8x=19/6+76
    8x=475/6
    x=475/6 :8
    x=475/48
    $Vậy…$
    d, 12: (3x – 7) + 34 = 40
    12:(3x-7)=40-34
    12:(3x-7)=6
    3x-7=12:6
    3x-7=2
    3x=2+7
    x=9:3
    x=3
    $Vậy……$
    f, 1234 – x = 567
    x=1234-567
    x=667
    $Vậy………..$
     

  2. Giải đáp + Lời giải và giải thích chi tiết:
    b, (x-10) : 18 = 6
    => x – 10 = 6 xx 18
    => x – 10 = 108
    => x = 108 + 10
    => x = 118
    Vậy x = 118
    c, 114 : (8x-76) = 36
    => 8x – 76 = 114/36
    => 8x = 114/36 + 76
    => 8x = 475/6
    => x = 475/6 : 8
    => x = 475/48
    Vậy x = 475/48
    d, 12 : (3x-7) + 34 = 40
    => 12 : (3x-7) = 40 – 36
    => 12 : (3x-7) = 6
    => 3x – 7 = 12 : 6
    => 3x – 7 = 2
    => 3x = 2 + 7
    => 3x = 9
    => x = 3
    Vậy x = 3
    f, 1234 – x = 567
    => x = 1234 – 567
    => x = 667
    Vậy x = 667

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