| 1400 | X | − | ( | 400 | + | 500 | X | ) | − | ( | 1400 | X | ÷ | ( | 1 | + | 17 100 | ) | × | 17 100 | − | 50 | X | ) | ( | 1 | + | 10 100 | ) | = | 0 |
| 1400 | X | − | 400 | − | 500 | X | − | ( | 1400 | X | ÷ | ( | 1 | + | 17 100 | ) | × | 17 100 | − | 50 | X | ) | ( | 1 | + | 10 100 | ) | = | 0 |
| 900 | X | − | 400 | − | ( | 1400 | X | ÷ | ( | 1 | + | 17 100 | ) | × | 17 100 | − | 50 | X | ) | ( | 1 | + | 10 100 | ) | = | 0 |
| 900 | X | − | 400 | − | 1400 | X | ÷ | ( | 1 | + | 17 100 | ) | × | 17 100 | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | = | 0 |
| 900 | X | − | 400 | − | 238 | X | ÷ | ( | 1 | + | 17 100 | ) | × | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | = | 0 |
| 方程两边同时乘以: | ( | 1 | + | 17 100 | ) |
| 900 | X | ( | 1 | + | 17 100 | ) | − | 400 | ( | 1 | + | 17 100 | ) | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
| 900 | X | × | 1 | + | 900 | X | × | 17 100 | − | 400 | ( | 1 | + | 17 100 | ) | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | = | 0 |
| 900 | X | + | 153 | X | − | 400 | ( | 1 | + | 17 100 | ) | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | = | 0 |
| 1053 | X | − | 400 | ( | 1 | + | 17 100 | ) | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
| 1053 | X | − | 400 | × | 1 | − | 400 | × | 17 100 | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | = | 0 |
| 1053 | X | − | 400 | − | 68 | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
| 1053 | X | − | 468 | − | 238 | X | ( | 1 | + | 10 100 | ) | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
| 1053 | X | − | 468 | − | 238 | X | × | 1 | − | 238 | X | × | 10 100 | + | 50 | X | ( | 1 | + | 10 100 | ) | = | 0 |
| 1053 | X | − | 468 | − | 238 | X | − | 119 5 | X | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
3956 5 | X | − | 468 | + | 50 | X | ( | 1 | + | 10 100 | ) | ( | 1 | + | 17 100 | ) | = | 0 |
3956 5 | X | − | 468 | + | 50 | X | × | 1 | ( | 1 | + | 17 100 | ) | + | 50 | X | × | 10 100 | ( | 1 | + | 17 100 | ) | = | 0 |
3956 5 | X | − | 468 | + | 50 | X | ( | 1 | + | 17 100 | ) | + | 5 | X | ( | 1 | + | 17 100 | ) | = | 0 |
3956 5 | X | − | 468 | + | 50 | X | × | 1 | + | 50 | X | × | 17 100 | + | 5 | X | ( | 1 | + | 17 100 | ) | = | 0 |
3956 5 | X | − | 468 | + | 50 | X | + | 17 2 | X | + | 5 | X | ( | 1 | + | 17 100 | ) | = | 0 |
8497 10 | X | − | 468 | + | 5 | X | ( | 1 | + | 17 100 | ) | = | 0 |
8497 10 | X | − | 468 | + | 5 | X | × | 1 | + | 5 | X | × | 17 100 | = | 0 |
8497 10 | X | − | 468 | + | 5 | X | + | 17 20 | X | = | 0 |
17111 20 | X | − | 468 | = | 0 |
17111 20 | X | = | 0 | + | 468 |
17111 20 | X | = | 468 |
| X | = | 468 | ÷ | 17111 20 |
| = | 468 | × | 20 17111 |
| X | = | 9360 17111 |
| X | = | 0.547017 |