Vincent had 5 times as many books as Ethan. After Vincent and Ethan donated 43 books and 3 books away respectively, they were left with an equal number of books. How many books did Vincent have at first?
| |
Vincent |
Ethan |
| Before |
5 u |
1 u |
| Change |
- 43 |
- 3 |
| After |
5 u - 43 |
1 u - 3 |
Vincent and Ethan had the same number of books left.
5 u - 43 = 1 u - 3
5 u - 1 u = 43 - 3
4 u = 40
1 u = 40 ÷ 4 = 10
Number of books that Vincent had at first
= 5 u
= 5 x 10
= 50
Answer(s): 50
