| 1000 | y | ÷ | 113 100 | − | ( | 1000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 400 | × | 1000 | − | 550 | × | 1000 | = | 0 |
| 方程左边 = | 100000 113 | y | − | ( | 1000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 400000 | − | 550000 |
| = | 100000 113 | y | − | ( | 1000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 950000 |
100000 113 | y | − | ( | 1000 | y | ÷ | 113 100 | × | 13 100 | − | 50 | × | 10000 | ) | × | 1 10 | − | 950000 | = | 0 |
| 方程左边 = | 100000 113 | y | − | 1000 | y | ÷ | 113 100 | × | 13 100 | × | 1 10 | + | 50 | × | 10000 | × | 1 10 | − | 950000 |
| = | 100000 113 | y | − | 1300 113 | y | + | 50000 | − | 950000 |
| = | 98700 113 | y | − | 900000 |
98700 113 | y | − | 900000 | = | 0 |
98700 113 | y | = | 0 | + | 900000 |
98700 113 | y | = | 900000 |
| y | = | 900000 | ÷ | 98700 113 |
| = | 900000 | × | 113 98700 |
| = | 3000 | × | 113 329 |
| y | = | 339000 329 |
| y | = | 1030.395137 |