| 1000 | × | 20 100 | x | = | 50 100 | x | + | 10 100 | ( | 1000 | − | x | ) |
| Left side of the equation = | 200 | x |
| 200 | x | = | 50 100 | x | + | 10 100 | ( | 1000 | − | x | ) |
| Right side of the equation = | 50 100 | x | + | 10 100 | × | 1000 | − | 10 100 | x |
| = | 50 100 | x | + | 100 | − | 10 100 | x |
| = | 2 5 | x | + | 100 |
| 200 | x | = | 2 5 | x | + | 100 |
| 200 | x | − | 2 5 | x | = | 100 |
998 5 | x | = | 100 |
| x | = | 100 | ÷ | 998 5 |
| = | 100 | × | 5 998 |
| = | 50 | × | 5 499 |
| x | = | 250 499 |
| x | = | 0.501002 |