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

Toán Lớp 5: `8,75 x` `x` `+ 1,25 x` `x`= 20

Toán Lớp 5: 8,75 x x + 1,25 x x= 20

Comments ( 2 )

  1. 8,75 × x + 1,25 × x = 20
    (8,75 + 1,25) × x     = 20
           10          × x     = 20
                            x      = 20 : 2
                            x      = 2
    Học Tốt Nhé :3!~

  2. 8,75 x x + 1,25 x x = 20
    x x (8,75 + 1,25) = 20
    x x 10                  = 20
    x                          = 20 : 10
    x                          = 2
    @Yashita 
    Xin hay nhất

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