Reggie had a total of 191 black and red stars. After giving away
23 of the black stars and 43 red stars, there was an equal number of black and red stars left. How many black stars did he have at first?
| |
Black stars |
Red stars |
Total |
| Before |
3 u |
1 u + 43 |
191 |
| Change |
- 2 u |
- 43 |
|
| After |
1 u |
1 u |
|
Total number of stars at first
= 3 u + 1 u + 43
= 4 u + 43
4 u + 43 = 191
4 u = 191 - 43
4 u = 148
1 u = 148 ÷ 4 = 37
Number of black stars that Reggie had at first
= 3 u
= 3 x 37
= 111
Answer(s): 111
