13-2y
_____ =1
5
求y的值
求解方程13-2y /5=1（/5為分數,不是除數)
2011-07-26 5:47 pm
回答 (3)
2011-07-27 2:02 am
(13-2y)/5=1
13-2y=5
13=5+2y
13-5=2y
8=2y
8/2=y
4=y
y=4
13-2y=5
13=5+2y
13-5=2y
8=2y
8/2=y
4=y
y=4
2011-07-27 1:41 am
13-2y
_____ =1
5
求y的值
13-2y
_____ =1
5
13-2y =1(5)
13-2y=5
2y=13+5
2y=18
y=9
Hope I can help you^v^
2011-07-26 17:44:03 補充：
The answer is not 9. (13-2y)/5 =1
13-2y=5
- 2y=5-13
-2y= -8
y= 4
_____ =1
5
求y的值
13-2y
_____ =1
5
13-2y =1(5)
13-2y=5
2y=13+5
2y=18
y=9
Hope I can help you^v^
2011-07-26 17:44:03 補充：
The answer is not 9. (13-2y)/5 =1
13-2y=5
- 2y=5-13
-2y= -8
y= 4
收錄日期: 2021-04-13 18:08:05
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https://hk.answers.yahoo.com/question/index?qid=20110726000051KK00224