method of substitution
1.{x-2y=4
3x+y=5
2.{8x-7y=13
3x-2y=28
method of elimination
1.{x+6y=19
x+2y=7
Problem solved by simultaneous equation
2007-08-04 6:56 am
回答 (1)
2007-08-04 7:01 am
參考: Myself~~~
收錄日期: 2021-04-21 13:33:54
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070803000051KK05706