ï¼1ï¼Mæ表示çæ°ä¸ºï¼ï¼-10+8ï¼/2=-1ãtç§åï¼Aï¼-10+3tï¼Bï¼8-4tã
ï¼2ï¼è¿å¨è¿ç¨ä¸ï¼Mç¹æ表示çæ°ä¸ºï¼[ï¼-10+3tï¼+ï¼8-4tï¼]/2=ï¼-2-tï¼/2ãåå¦è½å¤ä¸-3éåï¼åï¼ï¼-2-tï¼/2=-3ï¼t=4ï¼ç§ï¼ãæ以ï¼4ç§æ¶M表示çæ°ä¸º-3ã
æ¤æ¶ï¼Aï¼-10+3Ã4=2ï¼Bï¼8-4Ã4=-8ï¼åï¼M=ï¼2-8ï¼/2=-3ã
ï¼3ï¼ç¸è·3个åä½é¿åº¦ï¼å³ï¼|ï¼-10+3tï¼-ï¼8-4tï¼|=3ã
å为两ç§æ åµï¼
1ãï¼-10+3tï¼-ï¼8-4tï¼=3ï¼t=3ï¼ç§ï¼ãæ¤æ¶ï¼Aï¼-10+3Ã3=-1,ï¼Bï¼8-4Ã3=-4ã
2ãï¼8-4tï¼-ï¼-10+3tï¼=3ï¼t=15/7ï¼ç§ï¼ãæ¤æ¶ï¼Aï¼-10+3Ã15/7=-25/7ï¼Bï¼8-4Ã15/7=-4/7ã