| ( | 12812 | × | 199 5000 | + | 12812 | − | x | ) | ÷ | x | = | 10 100 |
| 方程两边同时乘以: | x |
| ( | 12812 | × | 199 5000 | + | 12812 | − | x | ) | = | 10 100 | x |
| 12812 | × | 199 5000 | + | 12812 | − | x | = | 10 100 | x |
637397 1250 | + | 12812 | − | x | = | 10 100 | x |
16652397 1250 | − | x | = | 10 100 | x |
| - | x | − | 10 100 | x | = | - | 16652397 1250 |
| - | 11 10 | x | = | - | 16652397 1250 |
16652397 1250 | = | 11 10 | x |
11 10 | x | = | 16652397 1250 |
| x | = | 16652397 1250 | ÷ | 11 10 |
| = | 16652397 1250 | × | 10 11 |
| = | 16652397 125 | × | 1 11 |
| x | = | 16652397 1375 |
| x | = | 12110.834182 |