| ( | 162 5 | + | x | ) | ( | 500 | − | 2 | x | ) | × | 6000 | = | 0 |
| 方程左边 = | 162 5 | ( | 500 | − | 2 | x | ) | × | 6000 | + | x | ( | 500 | − | 2 | x | ) | × | 6000 |
| = | 194400 | ( | 500 | − | 2 | x | ) | + | x | ( | 500 | − | 2 | x | ) | × | 6000 |
| = | 194400 | × | 500 | − | 194400 | × | 2 | x | + | x | ( | 500 | − | 2 | x | ) | × | 6000 |
| = | 97200000 | − | 388800 | x | + | x | ( | 500 | − | 2 | x | ) | × | 6000 |
| = | 97200000 | − | 388800 | x | + | x | × | 500 | × | 6000 | − | x | × | 2 | x | × | 6000 |
| = | 97200000 | − | 388800 | x | + | x | × | 3000000 | − | x | × | 12000 | x |
| = | 97200000 | + | 2611200 | x | − | x | × | 12000 | x |
| 97200000 | + | 2611200 | x | − | x | × | 12000 | x | = | 0 |
| x= | - | 162 5 |