Michael had 4 times as many books as Caden. After Michael and Caden donated 80 books and 11 books away respectively, they were left with an equal number of books. How many books did Michael have at first?
| |
Michael |
Caden |
| Before |
4 u |
1 u |
| Change |
- 80 |
- 11 |
| After |
4 u - 80 |
1 u - 11 |
Michael and Caden had the same number of books left.
4 u - 80 = 1 u - 11
4 u - 1 u = 80 - 11
3 u = 69
1 u = 69 ÷ 3 = 23
Number of books that Michael had at first
= 4 u
= 4 x 23
= 92
Answer(s): 92
