| ( | X | − | 10000 | × | 6 100 | − | 6000 | × | 10 100 | ÷ | ( | 1 | − | 25 100 | ) | − | 4000 | × | 9 100 | ) | ÷ | 1000 | = | ( | X | − | 10000 | × | 6 100 | − | 6000 | × | 10 100 | ÷ | 3 4 | ) | ÷ | 1400 |
| X | ÷ | 1000 | − | 10000 | × | 6 100 | ÷ | 1000 | − | 6000 | × | 10 100 | ÷ | ( | 1 | − | 25 100 | ) | ÷ | 1000 | − | 4000 | × | 9 100 | ÷ | 1000 | = | ( | X | − | 10000 | × | 6 100 | − | 6000 | × | 10 100 | ÷ | 3 4 | ) | ÷ | 1400 |
| X | ÷ | 1000 | − | 10000 | × | 6 100 | ÷ | 1000 | − | 6000 | × | 10 100 | ÷ | ( | 1 | − | 25 100 | ) | ÷ | 1000 | − | 4000 | × | 9 100 | ÷ | 1000 | = | X | ÷ | 1400 | − | 10000 | × | 6 100 | ÷ | 1400 | − | 6000 | × | 10 100 | ÷ | 3 4 | ÷ | 1400 |
| X | × | 1 1000 | − | 3 5 | − | 3 5 | ÷ | ( | 1 | − | 25 100 | ) | − | 9 25 | = | X | × | 1 1400 | − | 3 7 | − | 4 7 |
1 1000 | X | − | 24 25 | − | 3 5 | ÷ | ( | 1 | − | 25 100 | ) | = | 1 1400 | X | − | 1 |
| 方程两边同时乘以: | ( | 1 | − | 25 100 | ) |
1 1000 | X | ( | 1 | − | 25 100 | ) | − | 24 25 | ( | 1 | − | 25 100 | ) | − | 3 5 | = | 1 1400 | X | ( | 1 | − | 25 100 | ) | − | 1 | ( | 1 | − | 25 100 | ) |
1 1000 | X | × | 1 | − | 1 1000 | X | × | 25 100 | − | 24 25 | ( | 1 | − | 25 100 | ) | − | 3 5 | = | 1 1400 | X | ( | 1 | − | 25 100 | ) | − | 1 | ( | 1 | − | 25 100 | ) |
1 1000 | X | × | 1 | − | 1 1000 | X | × | 25 100 | − | 24 25 | ( | 1 | − | 25 100 | ) | − | 3 5 | = | 1 1400 | X | × | 1 | − | 1 1400 | X | × | 25 100 | − | 1 | ( | 1 | − | 25 100 | ) |
1 1000 | X | − | 1 4000 | X | − | 24 25 | ( | 1 | − | 25 100 | ) | − | 3 5 | = | 1 1400 | X | − | 1 5600 | X | − | 1 | ( | 1 | − | 25 100 | ) |
3 4000 | X | − | 24 25 | ( | 1 | − | 25 100 | ) | − | 3 5 | = | 3 5600 | X | − | 1 | ( | 1 | − | 25 100 | ) |
3 4000 | X | − | 24 25 | × | 1 | + | 24 25 | × | 25 100 | − | 3 5 | = | 3 5600 | X | − | 1 | ( | 1 | − | 25 100 | ) |
3 4000 | X | − | 24 25 | × | 1 | + | 24 25 | × | 25 100 | − | 3 5 | = | 3 5600 | X | − | 1 | × | 1 | + | 1 | × | 25 100 |
3 4000 | X | − | 24 25 | + | 6 25 | − | 3 5 | = | 3 5600 | X | − | 1 | + | 1 4 |
3 4000 | X | − | 33 25 | = | 3 5600 | X | − | 3 4 |
3 4000 | X | − | 3 5600 | X | = | - | 3 4 | + | 33 25 |
3 14000 | X | = | - | 3 4 | + | 33 25 |
3 14000 | X | = | 57 100 |
| X | = | 57 100 | ÷ | 3 14000 |
| = | 57 100 | × | 14000 3 |
| = | 19 | × | 140 |
| X | = | 2660 |