| ( | 6 100 | − | x | ) | ( | 4729 50 | − | 9633 100 | ) | = | 0 |
| 方程左边 = | 6 100 | ( | 4729 50 | − | 9633 100 | ) | − | x | ( | 4729 50 | − | 9633 100 | ) |
| = | 6 100 | × | 4729 50 | − | 6 100 | × | 9633 100 | − | x | ( | 4729 50 | − | 9633 100 | ) |
| = | 14187 2500 | − | 28899 5000 | − | x | ( | 4729 50 | − | 9633 100 | ) |
| = | - | 21 200 | − | x | ( | 4729 50 | − | 9633 100 | ) |
| = | - | 21 200 | − | x | × | 4729 50 | + | x | × | 9633 100 |
| = | - | 21 200 | + | 7 4 | x |
| - | 21 200 | + | 7 4 | x | = | 0 |
7 4 | x | = | 0 | + | 21 200 |
7 4 | x | = | 21 200 |
| x | = | 21 200 | ÷ | 7 4 |
| = | 21 200 | × | 4 7 |
| = | 3 50 | × | 1 |
| x | = | 3 50 |
| x | = | 0.06 |