Shiyun had 44 more smoothed stones than Gillian at first. After Shiyun bought another 26 smoothed stones, she had thrice as many smoothed stones as Gillian. How many smoothed stones did Shiyun have at first?
| |
Shiyun |
Gillian |
| Before |
1 u + 44 |
1 u |
| Change |
+ 26 |
|
| After |
1 u + 70 |
1 u |
Number of smoothed stones Shiyun had in the end
= 3 x 1 u
= 3 u
3 u = 1 u + 70
3 u - 1 u = 70
2 u = 70
1 u = 70 ÷ 2 = 35
Number of smoothed stones Shiyun had at first
= 1 u + 44
= 35 + 44
= 79
Answer(s): 79
