Elijah and Riordan had the same number of cards at first. After Elijah had bought another 36 cards and Riordan had lost 8 of his cards, Elijah had thrice as many cards as Riordan. How many cards did each of them have at first?
| |
Riordan |
Elijah |
| Before |
1 u + 8 |
3 u - 36 |
| Change |
- 8 |
+ 36 |
| After |
1 u |
3 u |
Elijah and Riordan had the same number of cards at first.
3 u - 36 = 1 u + 8
3 u - 1 u = 8 + 36
2 u = 44
1 u = 44 ÷ 2 = 22
Number of cards that each of them had at first
= 1 u + 8
= 22 + 8
= 30
Answer(s): 30
