Andy had
38 as many stickers as Erika. After Andy bought another 83 stickers, he had 12 less stickers than Erika. How many stickers did Andy have at first?
| |
Andy |
Erika |
| Before |
3 u |
8 u |
| Change |
+ 83 |
|
| After |
3 u + 83 |
8 u |
Erika had 12 more stickers than Andy in the end. So, if Andy had another 12 stickers, he would have the same number of stickers as Erika.
8 u = 3 u + 83 + 12
8 u - 3 u = 83 + 12
5 u = 95
1 u = 95 ÷ 5 = 19
Number of stickers that Andy had at first
= 3 u
= 3 x 19
= 57
Answer: 57
