5x+5-7+2+6-4+3-5=45
x=?
有關數學!@
2007-02-22 11:52 pm
回答 (16)
2007-02-22 11:56 pm
✔ 最佳答案
5x + 5 - 7 + 2 + 6 - 4 + 3 - 5 = 45=
5x + 0 = 45 （你睇真d，5-7+2+6-4+3-5 = 0，他們各自取消）
5x / 5 = 45 / 5
1x = 9
2007-02-27 6:26 pm
5x+5-7+2+6-4+3-5=45
x=9
x=9
2007-02-23 2:14 am
5x+5-7+2+6-4+3-5=45
x=5
2007-02-22 18:15:17 補充：
Sorry,not x=5,is 9
x=5
2007-02-22 18:15:17 補充：
Sorry,not x=5,is 9
2007-02-23 1:40 am
5x+5-7+2+6-4+3-5=45
5x+0=45
5x=45
x=9
5x+0=45
5x=45
x=9
2007-02-23 1:19 am
5x+5-7+2+6-4+3-5=45
5x+0=45
5x=45
5x 45
------ = ------
5 5
x=9
5x+0=45
5x=45
5x 45
------ = ------
5 5
x=9
2007-02-23 12:10 am
5x + 0 = 45
5x = 45
x = 9
5x = 45
x = 9
2007-02-23 12:00 am
5+2+6+3=16
7+4+5=16
16-16=0
5x=45
5x9=45
x=9
7+4+5=16
16-16=0
5x=45
5x9=45
x=9
收錄日期: 2021-04-13 13:22:33
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https://hk.answers.yahoo.com/question/index?qid=20070222000051KK02982