| ( | 201 200 | − | 1 5000 | ) | x | + | ( | 199 200 | − | 1 5000 | ) | ( | 1 | − | x | ) | = | 1 |
| Left side of the equation = | 201 200 | x | − | 1 5000 | x | + | ( | 199 200 | − | 1 5000 | ) | ( | 1 | − | x | ) |
| = | 628 625 | x | + | ( | 199 200 | − | 1 5000 | ) | ( | 1 | − | x | ) |
| = | 628 625 | x | + | 199 200 | ( | 1 | − | x | ) | − | 1 5000 | ( | 1 | − | x | ) |
| = | 628 625 | x | + | 199 200 | × | 1 | − | 199 200 | x | − | 1 5000 | ( | 1 | − | x | ) |
| = | 628 625 | x | + | 199 200 | − | 199 200 | x | − | 1 5000 | ( | 1 | − | x | ) |
| = | 49 5000 | x | + | 199 200 | − | 1 5000 | ( | 1 | − | x | ) |
| = | 49 5000 | x | + | 199 200 | − | 1 5000 | × | 1 | + | 1 5000 | x |
| = | 49 5000 | x | + | 199 200 | − | 1 5000 | + | 1 5000 | x |
| = | 1 100 | x | + | 2487 2500 |
1 100 | x | + | 2487 2500 | = | 1 |
1 100 | x | = | 1 | − | 2487 2500 |
1 100 | x | = | 13 2500 |
| x | = | 13 2500 | ÷ | 1 100 |
| = | 13 2500 | × | 100 |
| = | 13 25 | × | 1 |
| x | = | 13 25 |
| x | = | 0.52 |