| ( | 21136139 25 | + | 28 25 | x | ) | ÷ | 113 100 | × | 13 100 | − | 9520129 100 | = | x |
| 方程左边 = | ( | 21136139 25 | + | 28 25 | x | ) | × | 13 113 | − | 9520129 100 |
| ( | 21136139 25 | + | 28 25 | x | ) | × | 13 113 | − | 9520129 100 | = | x |
| 方程左边 = | 21136139 25 | × | 13 113 | + | 28 25 | x | × | 13 113 | − | 9520129 100 |
| = | 274769807 2825 | + | 364 2825 | x | − | 9520129 100 |
| = | 23304651 11300 | + | 364 2825 | x |
23304651 11300 | + | 364 2825 | x | = | x |
364 2825 | x | − | x | = | - | 23304651 11300 |
| - | 2461 2825 | x | = | - | 23304651 11300 |
23304651 11300 | = | 2461 2825 | x |
2461 2825 | x | = | 23304651 11300 |
| x | = | 23304651 11300 | ÷ | 2461 2825 |
| = | 23304651 11300 | × | 2825 2461 |
| = | 23304651 452 | × | 113 2461 |
| x | = | 2633425563 1112372 |
| x | = | 23304651 9844 |
| x | = | 2367.396485 |