| 165 | × | 618 | + | 168 | x | = | 97000 | + | 1000 | x |
| 方程左边 = | 101970 | + | 168 | x |
| 101970 | + | 168 | x | = | 97000 | + | 1000 | x |
| 168 | x | − | 1000 | x | = | 97000 | − | 101970 |
| - | 832 | x | = | 97000 | − | 101970 |
| - | 832 | x | = | - | 4970 |
| 4970 | = | 832 | x |
| 832 | x | = | 4970 |
| x | = | 4970 | ÷ | 832 |
| = | 4970 | × | 1 832 |
| = | 2485 | × | 1 416 |
| x | = | 2485 416 |
| x | = | 5.973558 |