622 125 | = | 21 5 | × | 139 50 | X | ÷ | ( | X | + | 1400 | ) |
| 方程两边同时乘以: | ( | X | + | 1400 | ) |
622 125 | ( | X | + | 1400 | ) | = | 21 5 | × | 139 50 | X |
622 125 | X | + | 622 125 | × | 1400 | = | 21 5 | × | 139 50 | X |
622 125 | X | + | 34832 5 | = | 2919 250 | X |
622 125 | X | − | 2919 250 | X | = | - | 34832 5 |
| - | 67 10 | X | = | - | 34832 5 |
34832 5 | = | 67 10 | X |
67 10 | X | = | 34832 5 |
| X | = | 34832 5 | ÷ | 67 10 |
| = | 34832 5 | × | 10 67 |
| = | 34832 | × | 2 67 |
| X | = | 69664 67 |
| X | = | 1039.761194 |