二元一次方程计算题.doc

文档介绍：二元一次方程计算题???????5253yxyx???????523xyxy???????152yxyx???????1302yxyx????????14329mnnm????????qpqp451332???????924523nmnm???????524753yxyx????????6430524mnnm????????????323113121yxyx?????????????????722013152yxyx???????82302yxyx(?????????33352yxyx???????52243yxyx???????????543cbcaba???????24352yxyx????????12392yxyx????????632223yxyx???????????15315)1(3xyyx4( 1) 3(1 ) 222 3x y yx y? ???????? ???132 333 4m nm n?? ?????? ???????3 4 412 6x y x yx y x y?? ?????? ?? ???144 4xyx y?? ?????? ??1 203 43 1 12 3 6x yx y? ??? ????? ??? ???