| ( | ( | x | − | 3 50 | ) | ( | x | − | 7 100 | ) | ÷ | 3 5000 | ) | × | 100 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| ( | x | − | 3 50 | ) | ( | x | − | 7 100 | ) | ÷ | 3 5000 | × | 100 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| ( | x | − | 3 50 | ) | ( | x | − | 7 100 | ) | × | 500000 3 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| x | ( | x | − | 7 100 | ) | × | 500000 3 | − | 3 50 | ( | x | − | 7 100 | ) | × | 500000 3 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| x | ( | x | − | 7 100 | ) | × | 500000 3 | − | 10000 | ( | x | − | 7 100 | ) | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| x | x | × | 500000 3 | − | x | × | 7 100 | × | 500000 3 | − | 10000 | ( | x | − | 7 100 | ) | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | x | × | 35000 3 | − | 10000 | ( | x | − | 7 100 | ) | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | − | 2432 25 | = | 0 |
| x | x | × | 500000 3 | − | 35000 3 | x | − | 10000 | x | + | 10000 | × | 7 100 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | = | 0 |
| x | x | × | 500000 3 | − | 35000 3 | x | − | 10000 | x | + | 700 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | ( | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | ) | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | ÷ | 3 10000 | × | 9213 100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | ( | x | − | 1 25 | ) | ( | x | − | 3 50 | ) | × | 307100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | x | ( | x | − | 3 50 | ) | × | 307100 | − | 1 25 | ( | x | − | 3 50 | ) | × | 307100 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | x | ( | x | − | 3 50 | ) | × | 307100 | − | 12284 | ( | x | − | 3 50 | ) | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | x | x | × | 307100 | − | x | × | 3 50 | × | 307100 | = | 0 |
| x | x | × | 500000 3 | − | 65000 3 | x | + | 15068 25 | + | x | x | × | 307100 | − | x | × | 18426 | − | 12284 | = | 0 |
| x | x | × | 500000 3 | − | 120278 3 | x | + | 15068 25 | + | x | x | × | 307100 | − | 12284 | ( | x | − | 3 50 | ) | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | = | 0 |
| x | x | × | 500000 3 | − | 120278 3 | x | + | 15068 25 | + | x | x | × | 307100 | − | 12284 | x | + | 12284 | = | 0 |
| x | x | × | 500000 3 | − | 120278 3 | x | + | 15068 25 | + | x | x | × | 307100 | − | 12284 | x | + | 18426 25 | = | 0 |
| x | x | × | 500000 3 | − | 157130 3 | x | + | 33494 25 | + | x | x | × | 307100 | − | ( | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | ) | × | 1893 20 | = | 0 |
| x | x | × | 500000 3 | − | 157130 3 | x | + | 33494 25 | + | x | x | × | 307100 | − | ( | x | − | 1 25 | ) | ( | x | − | 7 100 | ) | ÷ | ( | 1 10000 | ) | = | 0 |
| 方程两边同时乘以: | ( | 1 10000 | ) |
| x | x | × | 500000 3 | ( | 1 10000 | ) | − | 157130 3 | x | ( | 1 10000 | ) | + | 33494 25 | ( | 1 10000 | ) | + | x | x | × | 307100 | = | 0 |
| x | x | × | 500000 3 | × | 1 10000 | − | 157130 3 | x | ( | 1 10000 | ) | + | 33494 25 | ( | 1 10000 | ) | + | x | x | × | 307100 | = | 0 |
| x | x | × | 50 3 | − | 157130 3 | x | ( | 1 10000 | ) | + | 33494 25 | ( | 1 10000 | ) | + | x | x | × | 307100 | ( | 1 10000 | ) | = | 0 |
| x | x | × | 50 3 | − | 157130 3 | x | × | 1 10000 | + | 33494 25 | ( | 1 10000 | ) | + | x | x | × | 307100 | ( | 1 10000 | ) | = | 0 |