?→A:?→B:?→C:?→D:?→X:?→Y:
AX-BD→M:
(BY-CX) ┘M◢
(CD-AY) ┘M
[total 51 steps]
Example
解 5x - 6y + 30 = 0 及 2x + 3y - 6 = 0 (*留意,把方程各項及常數項的位置是否正確。)
Prog 1
5EXE -6EXE 30EXE 2 EXE 3 EXE -6 EXE
答案: x = -2 , y = 10/3