| ( | 50000 | ( | 1 | + | 1829 10000 | ) | + | y | ) | × | 1829 10000 | = | 50000 | × | 1829 10000 | + | 2000 |
| 方程左边 = | 50000 | ( | 1 | + | 1829 10000 | ) | × | 1829 10000 | + | y | × | 1829 10000 |
| = | 9145 | ( | 1 | + | 1829 10000 | ) | + | y | × | 1829 10000 |
| = | 9145 | × | 1 | + | 9145 | × | 1829 10000 | + | 1829 10000 | y |
| = | 9145 | + | 3345241 2000 | + | 1829 10000 | y |
| = | 21635241 2000 | + | 1829 10000 | y |
21635241 2000 | + | 1829 10000 | y | = | 50000 | × | 1829 10000 | + | 2000 |
| 方程右边 = | 9145 | + | 2000 |
| = | 11145 |
21635241 2000 | + | 1829 10000 | y | = | 11145 |
1829 10000 | y | = | 11145 | − | 21635241 2000 |
1829 10000 | y | = | 654759 2000 |
| y | = | 654759 2000 | ÷ | 1829 10000 |
| = | 654759 2000 | × | 10000 1829 |
| = | 654759 | × | 5 1829 |
| y | = | 3273795 1829 |
| y | = | 1789.937124 |