7k-(9k-16)=14-(19-k)
7k-(9k-16)=14-(19-k)
要ans步驟
回答 (3)
✔ 最佳答案
7k-(9k-16)=14-(19-k)
7k-9k+16 =14-19+k
-2k+16 =-5+k
21 =3k
k =7
The answer is 7.
Hope I can help you.
參考: my maths knowledge
7k-(9k-16)=14-(19-k)
7k-(9k)-(-16)=14-(19)-(-k)
7k-9k+16=14-19+k
-2k+16=-5+k
-2k-k=-5-16
-3k=-21
k=7
參考: myself
7k-(9k-16)=14-(19-k)
7k-9k+16=14-19+k
-2k+16=-5+k
21=3k
k=7
收錄日期: 2021-04-19 20:32:50
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