36 25 | = | 834 125 | X | ÷ | ( | X | + | 1400 | ) |
| 方程两边同时乘以: | ( | X | + | 1400 | ) |
36 25 | ( | X | + | 1400 | ) | = | 834 125 | X |
36 25 | X | + | 36 25 | × | 1400 | = | 834 125 | X |
36 25 | X | + | 2016 | = | 834 125 | X |
36 25 | X | − | 834 125 | X | = | - | 2016 |
| - | 654 125 | X | = | - | 2016 |
| 2016 | = | 654 125 | X |
654 125 | X | = | 2016 |
| X | = | 2016 | ÷ | 654 125 |
| = | 2016 | × | 125 654 |
| = | 336 | × | 125 109 |
| X | = | 42000 109 |
| X | = | 385.321101 |