John had
310 as many stickers as Gabby. After John bought another 58 stickers, he had 19 less stickers than Gabby. How many stickers did John have at first?
| |
John |
Gabby |
| Before |
3 u |
10 u |
| Change |
+ 58 |
|
| After |
3 u + 58 |
10 u |
Gabby had 19 more stickers than John in the end. So, if John had another 19 stickers, he would have the same number of stickers as Gabby.
10 u = 3 u + 58 + 19
10 u - 3 u = 58 + 19
7 u = 77
1 u = 77 ÷ 7 = 11
Number of stickers that John had at first
= 3 u
= 3 x 11
= 33
Answer: 33
