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

Toán Lớp 6: a, 4.x – 40 = 100 b, 2.x – 30 : 2 = 45 c, (3.x – 18) : 4 = 52 d, ( x + 100) : 10 = 40

Home/ Toán Lớp 6: a, 4.x – 40 = 100 b, 2.x – 30 : 2 = 45 c, (3.x – 18) : 4 = 52 d, ( x + 100) : 10 = 40

Toán Lớp 6: a, 4.x – 40 = 100 b, 2.x – 30 : 2 = 45 c, (3.x – 18) : 4 = 52 d, ( x + 100) : 10 = 40

Tháng Mười Hai 4, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: a, 4.x – 40 = 100
b, 2.x – 30 : 2 = 45
c, (3.x – 18) : 4 = 52
d, ( x + 100) : 10 = 40

Comments ( 2 )

  1. behocgioitoan
    behocgioitoan
    4 Tháng Mười Hai, 2022 at 9:41 chiều
    Reply
    a)
    4x-40=100
    4x=100+40
    4x=140
    x=140:4
    x=35
    b)
    2x-30:2=45
    2x-15=45
    2x=45+15
    2x=60
    x=60:2
    x=30
    c)
    (3x-18):4=52
    3x-18=52×4
    3x-18=208
    3x=208+18
    3x=226
    x=226:3
    x=226/3
    d)
    (x+100):10=40
    x+100=40×10
    x+100=400
    x=400-100
    x=300

  2. hothaibinh
    hothaibinh
    4 Tháng Mười Hai, 2022 at 9:40 chiều
    Reply
    A,4x – 40 =100
    => 4x = 100 +40
    => 4x = 140
    => x =140 :4
    => x = 35
    B,2x – 30:2 = 45
    => 2x – 15 = 45
    => 2x = 45+15
    => 2x = 60
    => x = 60:2
    => x=30
    C,(3x-18):4 = 52
    => 3x-18 = 52 × 4
    => 3x-18 =208
    => 3x = 208 +18
    => 3x =226
    => x = 226/2
    D,(x+100) : 10 = 40
    => x+100 =40 × 10
    => x+100 = 400
    => x= 400 -100
    => x =300
     

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

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