| y | × | 2 | − | 2500 | y | + | 997500 | = | 0 |
| Left side of the equation = | - | 2498 | y | + | 997500 |
| - | 2498 | y | + | 997500 | = | 0 |
| - | 2498 | y | = | 0 | − | 997500 |
| - | 2498 | y | = | - | 997500 |
| 997500 | = | 2498 | y |
| 2498 | y | = | 997500 |
| y | = | 997500 | ÷ | 2498 |
| = | 997500 | × | 1 2498 |
| = | 498750 | × | 1 1249 |
| y | = | 498750 1249 |
| y | = | 399.319456 |