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

Toán Lớp 6: ⊂(6 x – 72 ) : 2 -84 ⊃ .28 = 5628

Toán Lớp 6: ⊂(6 x – 72 ) : 2 -84 ⊃ .28 = 5628

Comments ( 2 )

  1. Giải đáp:
    $x=107$
    Lời giải và giải thích chi tiết:
    $[(6x-72):2-84].28=5628\\\Rightarrow (6x-72):2-84=201\\\Rightarrow (6x-72):2=285\\\Rightarrow 6x-72=570\\\Rightarrow 6x=642\\\Rightarrow x=107$

  2. [(6x – 72) : 2 – 84] . 28 = 5628
    (6x – 72) : 2 – 84 = 5628 : 28
    (6x – 72) : 2 – 84 = 201
    (6x – 72) : 2 = 201 + 84
    (6x – 72) : 2 = 285
    6x – 72 = 285 . 2
    6x – 72 = 570
    6x = 570 + 72
    6x = 642
      x = 642 : 6
      x = 107
    #dtkc
     

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

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