Hunderter-Ziffer h
Einer-Ziffer e
Zahl1 = 100h +10e +1e = 100h + 11e
Zahl2 = 100e +10h +1e = 101e + 10h
Zahl2= Zahl1 - 270
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101e + 10h = 100h + 11e - 270
270 = 90h - 90e
270 = 90·(h-e)
h-e = 3
h=2e
Also h=6; e=3
633 = 363+270