Fabian had 5 times as many black markers as green markers. After giving away 8 black markers and buying another 36 green markers, he had an equal number of black and green markers. How many black markers did Fabian have at first?
| |
Black markers |
Green markers |
| Before |
5 u |
1 u |
| Change |
- 8 |
+ 36 |
| After |
5 u - 8 |
1 u + 36 |
The number of black and green markers is the same in the end.
5 u - 8 = 1 u + 36
5 u - 1 u = 36 + 8
4 u = 8 + 36
4 u = 44
1 u = 44 ÷ 4 = 11
Number of black markers that Fabian had at first
= 5 u
= 5 x 11
= 55
Answer(s): 55
