Flynn had
29 as many stamps as Xandra. After Flynn bought another 15 stamps, he had 13 less stamps than Xandra. How many stamps did Flynn have at first?
| |
Flynn |
Xandra |
| Before |
2 u |
9 u |
| Change |
+ 15 |
|
| After |
2 u + 15 |
9 u |
Xandra had 13 more stamps than Flynn in the end. So, if Flynn had another 13 stamps, he would have the same number of stamps as Xandra.
9 u = 2 u + 15 + 13
9 u - 2 u = 15 + 13
7 u = 28
1 u = 28 ÷ 7 = 4
Number of stamps that Flynn had at first
= 2 u
= 2 x 4
= 8
Answer: 8
