英语数学一题The teacher taught the students the way to study French.改为同_其他解答

英语数学一题
The teacher taught the students the way to study French.改为同义句
The teacher taught the students（）（）study French.
当整数k取何值时,方程9x-3=kx+14

人气：283 ℃　时间：2020-06-17 22:30:16

解答

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方程化为（9-k）x=17
当9-k=0,即k=9时,方程无解.
当9-k≠0,即k≠9时,方程有唯一解x=17(9-k).