Question

tìm abc biết abc0 - abc =1107

Answer 1

abc0 - abc = 1107

abc x 10 - abc = 1107

abc x (10 - 1) = 1107

abc x 9 = 1107

abc = 1107 : 9

abc = 123

Answer 2

abc = 123

Answer 3

Ta có:

abc0 - abc = 1107

10(abc) - 1(abc) =1107

(10-1) abc   =1107

9(abc)         =1107

   abc          = 1107:9

   abc          =123

            Vậy abc = 123

Tick nha !!!!!!!!!!!!!!!!!!!!!!

 

Answer 4

abc x 10 - abc x 1 = 1107 

abc x ( 10 - 1 ) = 1107

abc x 9 = 1107

abc = 1107 : 9 

abc = 123

Tick cho mình nhé !