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When the positive integer k is divided by 7,the remainder is 6.What is the remainder when k+2 is divided by 这种余数的题怎么做啊,我忘光叻!
题目详情
When the positive integer k is divided by 7,the remainder is 6.What is the remainder when k+2 is divided by
这种余数的题怎么做啊,我忘光叻!
这种余数的题怎么做啊,我忘光叻!
▼优质解答
答案和解析
k=n*7+6
(k+2)/7=(n*7+8)/7=n+1+1/7
所以,余数为1
(k+2)/7=(n*7+8)/7=n+1+1/7
所以,余数为1
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