Liam had $2.20 less than Luis. After Liam gave $1.50 to Luis, Luis would have thrice as much money as Liam. How much money had Luis at first?
| |
Luis |
Liam |
| Before |
3 u - $1.50 |
1 u + $1.50 |
| Change |
+ $1.50 |
- $1.50 |
| After |
3 u |
1 u |
Liam had $2.20 less than Luis. If another $2.20 was given to Liam, Luis and Liam would have the same amount at first.
3 u - 1.50 = 1 u + 1.50 + 2.20
3 u - 1 u = 1.50 + 2.20 + 1.50
2 u = 5.20
1 u = 5.20 ÷ 2 = 2.60
Amount that Luis had at first
= 3 u - 1.50
= 3 x 2.60 + 1.50
= 7.80 + 1.50
= $9.30
Answer(s): $9.30
