abc8+5778=8abc
abc x 10+8+5778=8000+abc
abc x 10-abc=8000-5778-8
abc x(10-1)=2214
abc x 9=2214
abc=2214:9
abc=246
abc8+5778=8abc
abc x 10+8+5778=8000+abc
abc x 10-abc=8000-5778-8
abc x(10-1)=2214
abc x 9=2214
abc=2214:9
abc=246
Đúng nhe ban !
abc8+5778=8abc
abc x 10+8+5778=8000+abc
abc x 10-abc=8000-5778-8
abc x(10-1)=2214
abc x 9=2214
abc=2214:9
abc=246
abc8+5778=8abc
abc x 10+8+5778=8000+abc
abc x 10-abc=8000-5778-8
abc x(10-1)=2214
abc x 9=2214
abc=2214:9
abc=246
ok đừng gửi câu hỏi nữa