| x | = | 7171 10 | − | ( | 500 | × | 2 100 | + | x | × | 3 200 | + | x | × | 10 100 | + | x | × | 11 10 | × | 17 100 | ) |
| 方程右边 = | 7171 10 | − | 500 | × | 2 100 | − | x | × | 3 200 | − | x | × | 10 100 | − | x | × | 11 10 | × | 17 100 |
| = | 7171 10 | − | 10 | − | x | × | 3 200 | − | x | × | 10 100 | − | x | × | 187 1000 |
| = | 7071 10 | − | 151 500 | x |
| x | = | 7071 10 | − | 151 500 | x |
| x | + | 151 500 | x | = | 7071 10 |
651 500 | x | = | 7071 10 |
| x | = | 7071 10 | ÷ | 651 500 |
| = | 7071 10 | × | 500 651 |
| = | 2357 | × | 50 217 |
| x | = | 117850 217 |
| x | = | 543.087558 |