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

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

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

Comments ( 2 )

  1. $#Peter$
    8,75 × x +1 ,25 × x = 20
    (8,75 + 1,25 ) × x = 20
    10 × x = 20
    x = 20 : 10
    x = 2
     

  2. 8,75 xx x +1,25xx x= 20
    x xx(8,75+1,25)= 20
    x xx 10= 20
    x= 20:10
    x= 2
    @ a.b+a.c= a.(b+c)
    @namOvO
     

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