Shiyun and Xylia had $132 at first. Shiyun spent
58 of her money and Xylia spent
45 of her money. Given that they had $74 left, how much did Shiyun have at first?
|
Shiyun |
Xylia |
Total |
Before |
8 u |
5 p |
$132 |
Change |
- 5 u |
- 4 p |
|
After |
3 u |
1 p |
$74 |
8 u + 5 p = 132 --- (1)
3 u + 1 p = 74 --- (2)
(2) x 5 15 u + 5 p = 370 --- (3)
(3) - (1)
15 u - 8 u = 370 - 132
7 u = 238
1 u = 238 ÷ 7 = 34
Amount that Shiyun had at first
= 8 u
= 8 x 34
= $272
Answer(s): $272