In a bookstore,the number of Chinese books is 50 more than twice the number of English books.

题目

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

答案

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