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

Toán Lớp 7: a) -2763 -152 b) 35 + ( -9) c) ( -75 ) – ( 50) e) ( -25) + 30 – 15 a) x + 7 =1 b)x: 13 = 41 c) x – 8 = -3 – -8 d/ 7 -x = -8 -( -7)

Home/ Toán Lớp 7: a) -2763 -152 b) 35 + ( -9) c) ( -75 ) – ( 50) e) ( -25) + 30 – 15 a) x + 7 =1 b)x: 13 = 41 c) x – 8 = -3 – -8 d/ 7 -x = -8 -( -7)

Toán Lớp 7: a) -2763 -152 b) 35 + ( -9) c) ( -75 ) – ( 50) e) ( -25) + 30 – 15 a) x + 7 =1 b)x: 13 = 41 c) x – 8 = -3 – -8 d/ 7 -x = -8 -( -7)

Tháng Chín 28, 2022 Toán học 2 Comments 0 views

Toán Lớp 7: a) -2763 -152 b) 35 + ( -9) c) ( -75 ) – ( 50) e) ( -25) + 30 – 15
a) x + 7 =1 b)x: 13 = 41 c) x – 8 = -3 – -8 d/ 7 -x = -8 -( -7)

Comments ( 2 )

  1. doanthulan
    doanthulan
    28 Tháng Chín, 2022 at 1:57 chiều
    Reply
    a, (-2763) -152
    =-2915
    b, 35 + ( -9)
    =26
    c, ( -75 ) – 50
    =-125
    e, ( -25) + 30 – 15
    =5-15
    =-10
    ____________________________
    a, x + 7 =1
    => x=1-7
    => x=-6
    b, x: 13 = 41
    => x=41.13
    => x=533
    c, x – 8 = (-3) – (-8)
    => x-8=5
    => x=5+8
    => x=13
    d, 7 -x = -8 -( -7)
    => 7-x=-1
    => x=7-(-1)
    => x=8

  2. annhocbichchaubich
    annhocbichchaubich
    28 Tháng Chín, 2022 at 1:57 chiều
    Reply
    a) -2763 – 152
    = -2915
    b) 35 + (-9) = 26
    c) (-75) – 50 = -125
    e) (-25) + 30 – 15
    = 5 – 15 = -10
    a) x + 7 = 1
        x = 1 – 7 = -6
    b) x : 13 = 41
        x = 41 . 13
        x = 533
    c) x – 8 = -3–8
        x – 8 = 5
        x = 5 + 8 = 13
    d) 7 – x = -8 – – 7
        7 – x = -1
        x = 7 – – 1
        x = 8
     

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

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