Lucas and Audrey had an equal number of mochi balls at first. After Lucas bought another 19 mochi balls and Audrey lost 23 mochi balls, Lucas had thrice as many mochi balls as Audrey. Find the number of mochi balls each of them had at first.
| |
Lucas |
Audrey |
| Before |
3 u - 19 |
1 u + 23 |
| Change |
+ 19 |
- 23 |
| After |
3 u |
1 u |
The number of mochi balls that Lucas and Audrey at first is the same.
3 u - 19 = 1 u + 23
3 u - 1 u = 23 + 19
2 u = 42
1 u = 42 ÷ 2 = 21
Number of mochi balls that each of them had at first
= 1 u + 23
= 21 + 23
= 44
Answer(s): 44
