Current location - Training Enrollment Network - Books and materials - Xiaoming and Xiaojun each bought some picture books. As we all know, Xiaoming's books are three times as many as Xiaojun's. If Xiao Ming gave Xiao Jun 10, Xiao Jun and Xiao Ming would have as many.
Xiaoming and Xiaojun each bought some picture books. As we all know, Xiaoming's books are three times as many as Xiaojun's. If Xiao Ming gave Xiao Jun 10, Xiao Jun and Xiao Ming would have as many.
Solution: Let Xiaojun have X books, then Xiaoming has 3X books or 3- 1=2.
3x-10 = x+10/0+10 = 20 (Ben)
3x-x =10+00 20 ÷ 2 =10 (Ben)
2x = 20 3x 10 = 30 (Ben)
X= 10 A: Xiaojun has 10 books, 3x = 3x10 = 30 Xiaoming has 30 books.