| ( | x | − | 600 | ) | ( | 1 | − | 25 100 | ) | ÷ | 8000 | = | 0 |
| 方程左边 = | x | ( | 1 | − | 25 100 | ) | × | 1 8000 | − | 600 | ( | 1 | − | 25 100 | ) | × | 1 8000 |
| = | x | ( | 1 | − | 25 100 | ) | × | 1 8000 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | x | × | 1 | × | 1 8000 | − | x | × | 25 100 | × | 1 8000 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | x | × | 1 8000 | − | x | × | 1 32000 | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 32000 | x | − | 3 40 | ( | 1 | − | 25 100 | ) |
| = | 3 32000 | x | − | 3 40 | × | 1 | + | 3 40 | × | 25 100 |
| = | 3 32000 | x | − | 3 40 | + | 3 160 |
| = | 3 32000 | x | − | 9 160 |
3 32000 | x | − | 9 160 | = | 0 |
3 32000 | x | = | 0 | + | 9 160 |
3 32000 | x | = | 9 160 |
| x | = | 9 160 | ÷ | 3 32000 |
| = | 9 160 | × | 32000 3 |
| = | 3 | × | 200 |
| x | = | 600 |