| 10000 | y | ÷ | 113 100 | − | ( | 10000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 400 | × | 10000 | − | 500 | × | 10000 | = | 0 |
| 方程左边 = | 1000000 113 | y | − | ( | 10000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 4000000 | − | 5000000 |
| = | 1000000 113 | y | − | ( | 10000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 9000000 |
1000000 113 | y | − | ( | 10000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 9000000 | = | 0 |
| 方程左边 = | 1000000 113 | y | − | 10000 | y | ÷ | 113 100 | × | 13 100 | × | 1 10 | + | 50 | × | 10000 | × | 1 10 | − | 9000000 |
| = | 1000000 113 | y | − | 13000 113 | y | + | 50000 | − | 9000000 |
| = | 987000 113 | y | − | 8950000 |
987000 113 | y | − | 8950000 | = | 0 |
987000 113 | y | = | 0 | + | 8950000 |
987000 113 | y | = | 8950000 |
| y | = | 8950000 | ÷ | 987000 113 |
| = | 8950000 | × | 113 987000 |
| = | 8950 | × | 113 987 |
| y | = | 1011350 987 |
| y | = | 1024.670719 |