Glen had some stickers at first. After he bought another 84 stickers, he had thrice as many stickers as before. How many stickers did Glen have at first?
| |
Stickers |
| Before |
1 u |
| Change |
+ 84 |
| After |
1 u + 84 = 3 u |
Number of stickers after he bought = 1 u + 84
Number of stickers that is thrice as many stickers as before = 3 x 1 u = 3 u
3 u = 1 u + 84
3 u - 1 u = 84
2 u = 84
1 u = 84 ÷ 2 = 42
Number of stickers that Kim had at first
= 1 u
= 42
Answer(s): 42
