| ( | x | − | 200 | ) | ( | 1 | − | 25 100 | ) | ÷ | 3000 | + | 300 | = | ( | x | − | 200 | − | 1500 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ÷ | 2000 |
| 方程左边 = | x | ( | 1 | − | 25 100 | ) | × | 1 3000 | − | 200 | ( | 1 | − | 25 100 | ) | × | 1 3000 | + | 300 |
| = | x | ( | 1 | − | 25 100 | ) | × | 1 3000 | − | 1 15 | ( | 1 | − | 25 100 | ) | + | 300 |
| = | x | × | 1 | × | 1 3000 | − | x | × | 25 100 | × | 1 3000 | − | 1 15 | ( | 1 | − | 25 100 | ) | + | 300 |
| = | x | × | 1 3000 | − | x | × | 1 12000 | − | 1 15 | ( | 1 | − | 25 100 | ) | + | 300 |
| = | 1 4000 | x | − | 1 15 | ( | 1 | − | 25 100 | ) | + | 300 |
| = | 1 4000 | x | − | 1 15 | × | 1 | + | 1 15 | × | 25 100 | + | 300 |
| = | 1 4000 | x | − | 1 15 | + | 1 60 | + | 300 |
| = | 1 4000 | x | + | 5999 20 |
1 4000 | x | + | 5999 20 | = | ( | x | − | 200 | − | 1500 | × | 10 100 | ) | ( | 1 | − | 25 100 | ) | ÷ | 2000 |
| 方程右边 = | x | ( | 1 | − | 25 100 | ) | × | 1 2000 | − | 200 | ( | 1 | − | 25 100 | ) | × | 1 2000 | − | 1500 | × | 10 100 | ( | 1 | − | 25 100 | ) | × | 1 2000 |
| = | x | ( | 1 | − | 25 100 | ) | × | 1 2000 | − | 1 10 | ( | 1 | − | 25 100 | ) | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | x | × | 1 | × | 1 2000 | − | x | × | 25 100 | × | 1 2000 | − | 1 10 | ( | 1 | − | 25 100 | ) | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | x | × | 1 2000 | − | x | × | 1 8000 | − | 1 10 | ( | 1 | − | 25 100 | ) | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 8000 | x | − | 1 10 | ( | 1 | − | 25 100 | ) | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 8000 | x | − | 1 10 | × | 1 | + | 1 10 | × | 25 100 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 8000 | x | − | 1 10 | + | 1 40 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 8000 | x | − | 3 40 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 8000 | x | − | 3 40 | − | 3 40 | × | 1 | + | 3 40 | × | 25 100 |
| = | 3 8000 | x | − | 3 40 | − | 3 40 | + | 3 160 |
| = | 3 8000 | x | − | 21 160 |
1 4000 | x | + | 5999 20 | = | 3 8000 | x | − | 21 160 |
1 4000 | x | − | 3 8000 | x | = | - | 21 160 | − | 5999 20 |
| - | 1 8000 | x | = | - | 21 160 | − | 5999 20 |
| - | 1 8000 | x | = | - | 48013 160 |
48013 160 | = | 1 8000 | x |
1 8000 | x | = | 48013 160 |
| x | = | 48013 160 | ÷ | 1 8000 |
| = | 48013 160 | × | 8000 |
| = | 48013 | × | 50 |
| x | = | 2400650 |