Zeph had $146 more than Ivan. After Ivan gave $128 to Zeph, Zeph had 3 times as much money as Ivan. How much money did Zeph have at first?
| |
Zeph |
Ivan |
Comparing between
Zeph and Ivan
at first |
$146 more |
|
| Before |
3 u - $128 |
1 u + $128 |
| Change |
+ $128 |
- $128 |
| After |
3 u |
1 u |
Zeph had $146 more than Ivan at first. If Ivan had another $146 at first, both of them would had the same amount of money.
3 u - 128 = 1 u + 128 + 146
3 u - 128 = 1 u + 274
3 u - 1 u = 128 + 274
2 u = 402
1 u = 402 ÷ 2 = 201
Amount that Zeph had at first
= 3 u - 128
= 3 x 201 - 128
= 603 - 128
= $475
Answer(s): $475
