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

Toán Lớp 6: 42-[5x-(-32)]+12:2=6 Mong mọi người giúp ạ

Toán Lớp 6: 42-[5x-(-32)]+12:2=6
Mong mọi người giúp ạ

Comments ( 2 )

  1. 42-[5x-(-32)]+12:2= 6
    42-[5x+32]+6= 6
    42-[5x+32]= 6-6
    42-[5x+32]= 0
    5x+32= 42-0
    5x+32= 42
    5x= 42-32
    5x= 10
    x= 10:5
    x= 2
    #namOvO

  2. $ 42 – [ 5x – ( -32 ) ] + 12 : 2 = 6 $ 
    $ 42 – ( 5x + 32 ) + 6 = 6 $ 
    $ 42 – ( 5x + 32 ) = 6 – 6 = 0 $ 
    $ 5x+32=42-0=42 $ 
    $ 5x=42-32=10 $ 
    $ x=10:5=2 $

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