Tiffany had 4 times as many stickers as Opal at first. After Tiffany gave 21 stickers to Opal, they each had the same number of stickers in the end. How many stickers did Opal have in the end?
| |
Tiffany |
Opal |
| Before |
4 u |
1 u |
| Change |
- 21 |
+ 21 |
| After |
4 u - 21 |
1 u + 21 |
Comparing Tiffany and
Opal in the end |
1 |
1 |
The number of stickers that Tiffany and Opal had in the end is equal.
4 u - 21 = 1 u + 21
4 u - 1 u = 21 + 21
3 u = 42
1 u = 14
Number of stickers that Opal had in the end
= 1 u + 21
= 14 + 21
= 35
Answer(s): 35
