2-y=9
2.
- n分9 =3
更新1:
第2題係-n分9 唔係9分-n
2題數學題.........
回答 (3)
2006-12-03 11:33 pm
✔ 最佳答案
12-y=9
-y=9-2
-y=7
y=-7
2
-n分9唔知係咩...做2條你睇
______________________________
-n
__=3
9
-n=3x9
n=-27
________________________________
9
__=3
-n
9=3x(-n)
9
__=-n
3
-3=n
2006-12-03 11:33 pm
1.-11
2.27
2.27
收錄日期: 2021-05-03 12:05:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061203000051KK02759