2 100 | = | 4221 100 | x | + | ( | 1 | − | x | ) | ( | - | 742 2500 | ) |
| 方程右边 = | 4221 100 | x | + | 1 | ( | - | 742 2500 | ) | − | x | ( | - | 742 2500 | ) |
| = | 4221 100 | x | − | 1 | × | 742 2500 | − | x | ( | - | 742 2500 | ) |
| = | 4221 100 | x | − | 371 1250 | − | x | ( | - | 742 2500 | ) |
| = | 4221 100 | x | − | 371 1250 | + | x | × | 742 2500 |
| = | 106267 2500 | x | − | 371 1250 |
2 100 | = | 106267 2500 | x | − | 371 1250 |
| - | 106267 2500 | x | = | - | 371 1250 | − | 2 100 |
| - | 106267 2500 | x | = | - | 198 625 |
198 625 | = | 106267 2500 | x |
106267 2500 | x | = | 198 625 |
| x | = | 198 625 | ÷ | 106267 2500 |
| = | 198 625 | × | 2500 106267 |
| = | 198 | × | 4 106267 |
| x | = | 792 106267 |
| x | = | 0.007453 |