7-(9k-16)=14-(19-k)
唔好即刻比答案
方程問題(好易)
2006-10-27 2:19 am
回答 (10)
2006-10-31 8:18 am
7-(9k-16)=14-(19-k)
7-9k+16=14-19+k
-9k-k=14-19-7-16
-10k=-28
10k=28
k=2.8
7-9k+16=14-19+k
-9k-k=14-19-7-16
-10k=-28
10k=28
k=2.8
參考: 自己
2006-10-27 3:29 am
7-(9k-16)=14-(19-k)
remove the brackets
7-9k+16=14-19+k
collect like terms
23-9k=-5+k
10k=28
k=2.8
remove the brackets
7-9k+16=14-19+k
collect like terms
23-9k=-5+k
10k=28
k=2.8
2006-10-27 3:19 am
7-(9k-16) = 14-(19-k)
7-9k+16 = 14-19+k
23-9k = -5+k
23-9k+5 = k
28-9k = k
28 = 10k
k = 2.8
7-9k+16 = 14-19+k
23-9k = -5+k
23-9k+5 = k
28-9k = k
28 = 10k
k = 2.8
2006-10-27 2:27 am
7-(9k-16)=14-(19-k)
7-9k+16=14-19+k
23 - 9k = -5 + k
28 = 10k
k = 2.8
7-9k+16=14-19+k
23 - 9k = -5 + k
28 = 10k
k = 2.8
2006-10-27 2:27 am
7-(9k-16) = 14-(19-k)
7-9k+16 = 14-19+k
23-9k = -5+k
23-9k+5 = k
28-9k = k
28 = 10k
k = 2.8
7-9k+16 = 14-19+k
23-9k = -5+k
23-9k+5 = k
28-9k = k
28 = 10k
k = 2.8
2006-10-27 2:26 am
7-(9k-16)=14-(19-k)
7-9k+16=14-19+k
23-9k=k-5
23-9k-k+5=0
28-10k=0
k=-28/-10
k=28/10
k=14/5
2006-10-26 18:27:54 補充：
14/5=2.8
7-9k+16=14-19+k
23-9k=k-5
23-9k-k+5=0
28-10k=0
k=-28/-10
k=28/10
k=14/5
2006-10-26 18:27:54 補充：
14/5=2.8
參考: me
2006-10-27 2:25 am
7-9k+16=14-19+k
23-9k=(-5)+k
28=10k
k=2.8
23-9k=(-5)+k
28=10k
k=2.8
2006-10-27 2:24 am
7-9k+16=14-19+k
23-9k=-5+k
23+5=k+9k
28=10k
k=2.8
23-9k=-5+k
23+5=k+9k
28=10k
k=2.8
2006-10-27 2:23 am
23-9k=k-5
28=10k
k-2.8
28=10k
k-2.8
2006-10-27 2:21 am
咁即係點=.= 唔比答案但係又要人答?
收錄日期: 2021-04-13 15:43:59
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061026000051KK02769