s+1除3 + s+1除7=-6
回答 (5)
2006-10-19 5:28 am
✔ 最佳答案
(s+1)/3 + (s+1)/7=-6(7s+7)/21 + (3s+3)/21=-6
(10s+10)/21=-6
10s+10=-6*21
10s=-126-10
10s=-136
s=-13.6
2006-10-19 15:55:48 補充：
OR~~s+1/3+s+1/7=-62s+7/21+3/21=-62s+10/21=-62s=-6-10/212s=-(6+10/21)s=-(3+5/21)
參考: me~~
2006-10-19 5:26 am
s+1除3 + s+1除7=-6
2s+1/3+1/7=-6
2s+(7+3)/21=-6
2s=-6 - 10/21
42s=-16
s= - 8/21
2s+1/3+1/7=-6
2s+(7+3)/21=-6
2s=-6 - 10/21
42s=-16
s= - 8/21
2006-10-19 5:25 am
s+1/4+s* 1/7=-6
s+1/7s+28=-6
s+1=-42s-168
s=-42s-169
43s=-169
s=-169/43
s+1/7s+28=-6
s+1=-42s-168
s=-42s-169
43s=-169
s=-169/43
參考: my mind
2006-10-19 5:24 am
s+1除3 + s+1除7=-6
7s+7除21 + 3s+3除21=-126除21
7s+7+3s+3=-126
10s+10=-126
10s=-136
s=-13.6
7s+7除21 + 3s+3除21=-126除21
7s+7+3s+3=-126
10s+10=-126
10s=-136
s=-13.6
參考: me!!!
2006-10-19 5:23 am
s+(1除3) + s+(1除7)=-6
收錄日期: 2021-05-03 01:32:10
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061018000051KK04382