(I) ABC * BB = ADBC * + - (II) E + ACC = ACE ------------------ (III) FGEC + ABB = ABCB (IV) (V) (VI) Solution: (II.1) C = 0 (I) A * B <= A => B = 1 (I) D = A+1 (VI.1) B + E = 10 => E = 9 (III) F = A-1 (IV) G = 10-A 310 * 11 = 3410 * + - 9 + 300 = 309 ------------------ 2790 + 311 = 3101 410 * 11 = 4510 * + - 9 + 400 = 409 ------------------ 3690 + 411 = 4101 610 * 11 = 6710 * + - 9 + 600 = 609 ------------------ 5490 + 611 = 6101 710 * 11 = 7810 * + - 9 + 700 = 709 ------------------ 6390 + 711 = 7101 References: - Torsten Sillke; 2003-11