Tom had $42 more than Ivory. After Ivory spent
19 of her money, Tom had twice as much money as Ivory. How much money did Tom have at first?
| |
Tom |
Ivory |
| Before |
16 u |
9 u |
| Change |
|
- 1 u |
| After |
16 u |
8 u |
Amount that Tom had in the end
= 2 x 8 u
= 16 u
If Ivory had another $42 at first, the amounts that Tom and Ivory each had at first will be the same.
16 u = 9 u + 42
16 u - 9 u = 42
7 u = 42
1 u = 42 ÷ 7 = 6
Amount Tom had at first
= 16 u
= 16 x 6
= $96
Answer(s): $96
