abcde2=3.2abcde<=>abcde.10+2=3.abcde+600000
<=>7.abcde=600000-2=599998
=>abcde=85714
Bg
Ta có: 2abcde.3 = abcde2
=> 3.(200 000 + abcde) = abcde.10 + 2
=> 600 000 + 3.abcde = abcde.10 + 2
=> 600 000 - 2 = 10.abcde - 3.abcde
=> 599 998 = 7.abcde
=> abcde = 85714
Ta có : 2abcde x 3 = abcde2
=> (200000 + abcde) x 3 = abcde x 10 + 2
=> 600 000 + abcde x 3 = abcde x 10 + 2
=> 600 000 - 2 = abcde x 10 - abcde x 3
=> 599998 = 7 x abcde
=> abcde = 85714
Vậy abcde = 85714
À, quên ghi kết luận:
Vậy abcde = 85714