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

Toán Lớp 6: Bài 5: Tìm x, biết: a) – x + 5 = 6 b) 3x – 67 = -45 c) 52: x + 73 = 89 + (-12) d) x: 4 – 12 = -2 Giúp mk vs ạ, please……�

Toán Lớp 6: Bài 5: Tìm x, biết:
a) – x + 5 = 6
b) 3x – 67 = -45
c) 52: x + 73 = 89 + (-12)
d) x: 4 – 12 = -2
Giúp mk vs ạ, please……????????????

Comments ( 1 )

  1. a) – x + 5 = 6
    -x = 6 -5 
    -x = 1 
    x = -1 
    b) 3x – 67 = -45
    3x = -45 + 67
    3x = 22
    x= 22:3 
    x= 7, 333 …
    c) 52: x + 73 = 89 + (-12)
    52:x +73 = 89 -12
    52:x +73 = 77 
    52 😡 = 77-73
    52 : x = 4 
    x= 52: 4
    x=  13 
    d) x: 4 – 12 = -2
    x :4 = -2 +12
    x: 4 = 10
    x= 10 : 4 
    x= 2 ,5 

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