| 108 | + | 1 20 | x | + | 3 20 | x | + | 17 100 | x | ÷ | 117 100 | = | 0 |
| 方程左边 = | 108 | + | 1 20 | x | + | 3 20 | x | + | 17 117 | x |
| = | 108 | + | 202 585 | x |
| 108 | + | 202 585 | x | = | 0 |
202 585 | x | = | 0 | − | 108 |
202 585 | x | = | - | 108 |
| x | = | - | 108 | ÷ | 202 585 |
| = | - | 108 | × | 585 202 |
| = | - | 54 | × | 585 101 |
| x | = | - | 31590 101 |
| x | = | - 312.772277 |