In a bookstore,the number of Chinese books is 50 more than twice the number of English books.
If there are 350 Chinese books,find the number of English books in the bookstore
人气：401 ℃ 时间：2019-08-29 00:19:55
解答
一家书店里,中文书的数目比英文书数目的二倍还多50本.
如果有350本中文书,请得出此书店里英文书的数目.
结果是150本...计算过程不需要详解吧...2x+50=350
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