Tiffany had twice as much money as Lynn. After Tiffany spent $13 and Lynn spent $9, Tiffany had $35 more than Lynn. How much did Tiffany have in the end?
| |
Tiffany |
Lynn |
| Before |
2 u |
1 u |
| Change |
- $13 |
- $9 |
| After |
2 u - $13 |
1 u - $9 |
Comparing Tiffany
and Lynn
in the end |
$35 more |
|
If Lynn was given another $35, the amounts that Tiffany and Lynn each had in the end would be the same.
2 u - 13 = 1 u - 9 + 35
2 u - 1 u = 13 + 26
1 u = 39
1 u = 39 ÷ 1 = 39
Amount that Tiffany had in the end
= 2 u - 13
= 2 x 39 - 13
= 78 - 13
= $65
Answer(s): $65
