Question

abc1-1abc=7506

Answer 1

abc1 - 1abc = 7506

abc1 = 1abc + 7506

abc x 10 + 1 = 1000 + abc + 7506

abc x 10 - abc = 1000 - 1 + 7506

abc x 9 = 8505

abc = 8505 : 9 = 945

Answer 2

 thieu de bn oi

Answer 3

abc1 - 1abc = 7560

=> 10abc + 1 - 1000 - abc = 7560

=> 10abc - abc = 7560 + 1000 - 1 

=> 9abc = 8505

=> abc = 945

Answer 4

945 

duyệt nha

Answer 5

abc1 - 1abc = 7506

abc1 = 1abc + 7506

abc x 10 + 1 = 1000 + abc + 7506

abc x 10 - abc = 1000 - 1 + 7506

abc x 9 = 8505

abc = 8505 : 9 = 945