Fabian had 5 times as many white pens as pink pens. After giving away 6 white pens and buying another 34 pink pens, he had an equal number of white and pink pens. How many white pens did Fabian have at first?
| |
White pens |
Pink pens |
| Before |
5 u |
1 u |
| Change |
- 6 |
+ 34 |
| After |
5 u - 6 |
1 u + 34 |
The number of white and pink pens is the same in the end.
5 u - 6 = 1 u + 34
5 u - 1 u = 34 + 6
4 u = 6 + 34
4 u = 40
1 u = 40 ÷ 4 = 10
Number of white pens that Fabian had at first
= 5 u
= 5 x 10
= 50
Answer(s): 50
