更新1:
solve for z
multiplication principle.?
回答 (4)
2016-02-04 4:49 am
- 1/3z = 1/4
-(3/1)1/3z = (3/1)1/4
- z = 3/4
z = - 3/4.
-(3/1)1/3z = (3/1)1/4
- z = 3/4
z = - 3/4.
2016-02-04 4:24 am
-4/12z=3/12
z=3/12*-12/4
z=-3/4
z=3/12*-12/4
z=-3/4
2016-02-04 4:22 am
z=-3/4
2016-02-04 5:30 am
-1/3z = 1/4
= (-1)(1) / (3z)(4)
= -1 / 12z
= (-1)(1) / (3z)(4)
= -1 / 12z
收錄日期: 2021-04-21 16:39:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160203202125AAp2xma