| ( | 108 | + | x | ) | ÷ | 5 | × | 67 100 | = | x |
| 方程左边 = | ( | 108 | + | x | ) | × | 67 500 |
| ( | 108 | + | x | ) | × | 67 500 | = | x |
| 方程左边 = | 108 | × | 67 500 | + | x | × | 67 500 |
| = | 1809 125 | + | x | × | 67 500 |
1809 125 | + | 67 500 | x | = | x |
67 500 | x | − | x | = | - | 1809 125 |
| - | 433 500 | x | = | - | 1809 125 |
1809 125 | = | 433 500 | x |
433 500 | x | = | 1809 125 |
| x | = | 1809 125 | ÷ | 433 500 |
| = | 1809 125 | × | 500 433 |
| = | 1809 | × | 4 433 |
| x | = | 7236 433 |
| x | = | 16.711316 |