abc x 9 = 1abc
abc x 9 = 1000 + abc
abc x 9 - abc = 1000
abc x 8 = 1000
= > abc =1000:8
=> abc =125
Vậy abc = 125
abc x 9 =1abc
abc x 9 = 1000 + abc
abc x 9 - abc = 1000
abc x 8 =1000
abc = 1000 : 8 =125
\(9\times abc=1000+abc\)
\(\Rightarrow8\times abc=1000\)
\(\Rightarrow abc=125\)
abc x 9 = 1abc
abc × 9 = 1000 + abc
abc x 9 - abc = 1000
abc x 8 = 1000
=> abc = 1000 : 8
=> abc = 125
Vậy abc = 125
abc x 9 = 1abc
abc x 9 = 1000 + abc
abc x 9 - abc = 1000
=> abc = 1000 : 8
=> abc = 125
Vậy abc = 125
abc x 9 = 1abc
abc x 9 = 1000 + abc
abc x 9 - abc = 1000
=> abc = 1000 : 8
=> abc = 125
Vậy abc = 125
Ta có: abc x 9 = 1abc
<=> abc x 9 = 1000 + abc
<=> abc x 9 - abc = 1000
=> abc = 1000 : 8
=> abc = 125
Vậy abc = 125
abc x 9 = 1abc
abc x 9 = 1000 + abc
abc x 9 - abc = 1000
abc x 8 = 1000
= > abc =1000:8
=> abc =125
Vậy abc = 125
9xabc=1000+abc
suy ra 8 nhân abc =1000
suy ra abc=125
1abc=abc*9
1000+abc=abc*9
abc*9-abc*1=abc*8
abc=1000:8
ab125
