Fanny had
38 as much money as Linda. Fanny received another $30 from her uncle and Linda received $7 from her mother. In the end, Fanny had $3 more than Linda. How much did the girls have altogether in the end?
| |
Fanny |
Linda |
| Before |
3 u |
8 u |
| Change |
+ 30 |
+ 7 |
| After |
3 u + 30 |
8 u + 7 |
If Linda received another $3 in the end, she would have the same amount of money as Fanny.
8 u + 7 + 3 = 3 u + 30
8 u + 10 = 3 u + 30
8 u - 3 u = 30 - 10
5 u = 20
1 u = 20 ÷ 5 = 4
Amount that the girls had in the end
= 3 u + 30 + 8 u + 7
= 3 u + 8 u + 30 + 7
= 11 u + 37
= 11 x 4 + 37
= $81
Answer(s): $81
