George and Elijah had a total of $115. George gave $13 to Elijah. In return, Elijah gave $31 to George. In the end, George had $39 more than Elijah. How much money did George have at first?
| |
George |
Elijah |
Total |
| Before |
? |
|
$115 |
| Change 1 |
- $13 |
+ $13 |
|
| Change 2 |
+ $31 |
- $31 |
|
| After |
1 u + $39 |
1 u |
$115 |
Total amount that George and Elijah had
= 1 u + 1 u + $39
= 2 u + 39
2 u + 39 = 115
2 u = 115 - 39
2 u = 76
1 u = 76 ÷ 2 = 38
Amount that George had in the end
= 1 u + 39
= 38 + 39
= $77
Amount that George had at first
= 77 - 31 + 13
= $59
Answer(s): $59
