John and Ava had an equal number of caramel apples at first. After John bought another 7 caramel apples and Ava lost 21 caramel apples, John had five times as many caramel apples as Ava. Find the number of caramel apples each of them had at first.
| |
John |
Ava |
| Before |
5 u - 7 |
1 u + 21 |
| Change |
+ 7 |
- 21 |
| After |
5 u |
1 u |
The number of caramel apples that John and Ava at first is the same.
5 u - 7 = 1 u + 21
5 u - 1 u = 21 + 7
4 u = 28
1 u = 28 ÷ 4 = 7
Number of caramel apples that each of them had at first
= 1 u + 21
= 7 + 21
= 28
Answer(s): 28
