Jack had
59 as many pens as Kimberly. After Jack gave away 7 pens, he had 83 less pens than Kimberly. How many pens did Kimberly have?
| |
Jack |
Kimberly |
| Before |
5 u |
9 u |
| Change |
- 7 |
|
| After |
5 u - 7 |
9 u |
Kimberly had 83 more pens than Jack in the end. So, if Jack had another 83 pens, he would have the same number of pens as Kimberly.
9 u = 5 u - 7 + 83
9 u - 5 u = 83 - 7
4 u = 76
1 u = 76 ÷ 4 = 19
Number of pens that Kimberly had at first
= 9 u
= 9 x 19
= 171
Answer: 171
