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

Toán Lớp 7: 8/3-(x/4-3x/2-1/2)=3/8.Giải giúp e vs ạ ,e cảm ơn

Toán Lớp 7: 8/3-(x/4-3x/2-1/2)=3/8.Giải giúp e vs ạ ,e cảm ơn

Comments ( 1 )

  1. 8/3 – (x/4 – (3x)/2 – 1/2 )= 3/8
    x 1/4 – x 3/2 – 1/2 = 8/3 – 3/8
    x (1/4 – 3/2 ) – 1/2 = 55/24
    x(1/4 – 6/4 ) = 55/24 + 1/2
    x (-5/4) = 67/24
    => x =  -67/30

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