| 200 | x | − | ( | 600 | + | 8287 100 | x | ) | − | ( | 200 | x | × | 13 100 | − | 120 | ) | × | 1 10 | = | 0 |
| 方程左边 = | 200 | x | − | 600 | − | 8287 100 | x | − | ( | 200 | x | × | 13 100 | − | 120 | ) | × | 1 10 |
| = | 11713 100 | x | − | 600 | − | ( | 200 | x | × | 13 100 | − | 120 | ) | × | 1 10 |
| = | 11713 100 | x | − | 600 | − | 200 | x | × | 13 100 | × | 1 10 | + | 120 | × | 1 10 |
| = | 11713 100 | x | − | 600 | − | 13 5 | x | + | 12 |
| = | 11453 100 | x | − | 588 |
11453 100 | x | − | 588 | = | 0 |
11453 100 | x | = | 0 | + | 588 |
11453 100 | x | = | 588 |
| x | = | 588 | ÷ | 11453 100 |
| = | 588 | × | 100 11453 |
| x | = | 58800 11453 |
| x | = | 5.134026 |