Tip: To list equations, you must keep the total number of people or books unchanged before you can list equations.
Equation: Solution: Let * * have X outstanding young pioneers, then the equation can be listed as follows:
6x-2 1=5x-3。 Move the project to get:
x= 18。
Then, a * * * has a book: 18×5-3=87 (Ben).
A: A * * * has 87 books, which were written by 18 young pioneers.
Formula: Excellent Young Pioneers: (2 1-3)÷(6-5)= 18 (person).
1* * There are books: 18×6-2 1=87 (Ben)
A: I have 87 books, 18 Excellent Young Pioneers.
That should be it. I hope my answer can bring you some help. I wish you progress in your study! !