| 1500 | × | 100 | × | 13 100 | + | 1500 | × | 40 | × | 13 100 | + | 2340 | ÷ | ( | 1 | + | 13 100 | ) | × | 10 | X | × | 13 100 | = | 0 |
| 方程两边同时乘以: | ( | 1 | + | 13 100 | ) |
| 1500 | × | 100 | × | 13 100 | ( | 1 | + | 13 100 | ) | + | 1500 | × | 40 | × | 13 100 | ( | 1 | + | 13 100 | ) | + | 2340 | × | 10 | X | × | 13 100 | = | 0 |
| 1500 | × | 100 | × | 13 100 | × | 1 | + | 1500 | × | 100 | × | 13 100 | × | 13 100 | + | 1500 | × | 40 | × | 13 100 | ( | 1 | + | 13 100 | ) | = | 0 |
| 19500 | + | 2535 | + | 7800 | ( | 1 | + | 13 100 | ) | + | 3042 | X | = | 0 |
| 22035 | + | 7800 | ( | 1 | + | 13 100 | ) | + | 3042 | X | = | 0 |
| 22035 | + | 7800 | × | 1 | + | 7800 | × | 13 100 | + | 3042 | X | = | 0 |
| 22035 | + | 7800 | + | 1014 | + | 3042 | X | = | 0 |
| 30849 | + | 3042 | X | = | 0 |
| 3042 | X | = | 0 | − | 30849 |
| 3042 | X | = | - | 30849 |
| X | = | - | 30849 | ÷ | 3042 |
| = | - | 30849 | × | 1 3042 |
| = | - | 791 | × | 1 78 |
| X | = | - | 791 78 |
| X | = | - 10.141026 |