Sophia and Kaylee had an equal number of lollipops at first. After Sophia bought another 9 lollipops and Kaylee lost 15 lollipops, Sophia had thrice as many lollipops as Kaylee. Find the number of lollipops each of them had at first.
| |
Sophia |
Kaylee |
| Before |
3 u - 9 |
1 u + 15 |
| Change |
+ 9 |
- 15 |
| After |
3 u |
1 u |
The number of lollipops that Sophia and Kaylee at first is the same.
3 u - 9 = 1 u + 15
3 u - 1 u = 15 + 9
2 u = 24
1 u = 24 ÷ 2 = 12
Number of lollipops that each of them had at first
= 1 u + 15
= 12 + 15
= 27
Answer(s): 27
