| ( | x | − | 2 | ) | × | 10 | − | ( | 2 | × | 10 | × | 1 5000 | + | x | × | 10 | × | 1 5000 | ) | = | 3 |
| 方程左边 = | x | × | 10 | − | 2 | × | 10 | − | ( | 2 | × | 10 | × | 1 5000 | + | x | × | 10 | × | 1 5000 | ) |
| = | x | × | 10 | − | 20 | − | ( | 2 | × | 10 | × | 1 5000 | + | x | × | 10 | × | 1 5000 | ) |
| = | 10 | x | − | 20 | − | 2 | × | 10 | × | 1 5000 | − | x | × | 10 | × | 1 5000 |
| = | 10 | x | − | 20 | − | 1 250 | − | x | × | 1 500 |
| = | 4999 500 | x | − | 5001 250 |
4999 500 | x | − | 5001 250 | = | 3 |
4999 500 | x | = | 3 | + | 5001 250 |
4999 500 | x | = | 5751 250 |
| x | = | 5751 250 | ÷ | 4999 500 |
| = | 5751 250 | × | 500 4999 |
| = | 5751 | × | 2 4999 |
| x | = | 11502 4999 |
| x | = | 2.30086 |