Question

tim abc biet 3abc =abc * 26

giúp vs có like

Answer 1

3abc = abc x 26

3000 + abc = abc x 26

3000 + abc = abc + abc x 25

Cùng bớt đi abc, ta có:

3000 = abc x 25

3000 : 25 = abc

120 = abc.

Vậy abc = 120

Answer 2

3abc=abc x26 

3000+abc = 26abc

3000=26abc-abc

3000=25abc

abc=3000/25 =120