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

Toán Lớp 7: 5-x phần 3 = âm 1/2 Giải giúp mik vs ạ

Toán Lớp 7: 5-x phần 3 = âm 1/2
Giải giúp mik vs ạ

Comments ( 2 )

  1. 5 – x/3 = -1/2
    -> x/3 = 5 – (-1/2)
    -> x/3 = 5 +1/2 = 10/2 +1/2 =11/2
    -> x = 11/2 . 3 = 33/2
    Vậy x =33/2 

  2. (5-x)/3 = -1/2
    => 5-x = -1/2 .3
    => 5-x = -3/2
    => x = 5 – (-3/2)
    => x = 5+ 3/2
    => x= 13/2
    Vậy x= 13/2
     

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