1429 5 | ( | 5 | − | x | ) | + | 2220 | x | − | 3847 | = | 0 |
| 方程左边 = | 1429 5 | × | 5 | − | 1429 5 | x | + | 2220 | x | − | 3847 |
| = | 1429 | − | 1429 5 | x | + | 2220 | x | − | 3847 |
| = | - | 2418 | + | 9671 5 | x |
| - | 2418 | + | 9671 5 | x | = | 0 |
9671 5 | x | = | 0 | + | 2418 |
9671 5 | x | = | 2418 |
| x | = | 2418 | ÷ | 9671 5 |
| = | 2418 | × | 5 9671 |
| x | = | 12090 9671 |
| x | = | 1.250129 |