Jade and Pamela had the same number of buttons. After Jade had given away 72 buttons, Pamela had 7 times as many buttons as Jade. How many buttons did each of them have at first?
| |
Jade |
Pamela |
| Before |
1 u + 72 |
7 u |
| Change |
- 72 |
|
| After |
1 u |
7 u |
Number of buttons that Pamela had remains unchanged.
Number of buttons that Jade and Pamela had at first is equal.
7 u = 1 u + 72
7 u - 1 u = 72
6 u = 72
1 u = 72 ÷ 6= 12
Number of buttons that each of them had at first
= 1 u + 72
= 12 + 72
= 84
Answer(s): 84
