abc6 -abc = 6063
abc x 10 + 6 - abc = 6063
abc x10 - abc = 6063-6
abc x 9 = 6057
abc=6057 : 9= 673
vậy abc= 673
abc6 - abc = 6063
( 10 x abc + 6 ) - abc = 6063
9 x abc + 6 = 6063
9 x abc = 6063 - 6
9 x abc = 6057
abc = 6057 : 9
abc = 673
abc6 -abc = 6063
abc x 10 + 6 - abc = 6063
abc x10 - abc = 6063-6
abc x 9 = 6057
abc=6057 : 9= 673
vậy abc= 673