| 0 | = | 50 | q | − | ( | ( | 50 | × | 55 100 | + | 50 | × | 5 100 | ) | q | + | 1000000 | ) |
| Right side of the equation = | 50 | q | − | ( | 50 | × | 55 100 | + | 50 | × | 5 100 | ) | q | − | 1000000 |
| = | 50 | q | − | 50 | × | 55 100 | q | − | 50 | × | 5 100 | q | − | 1000000 |
| = | 50 | q | − | 55 2 | q | − | 5 2 | q | − | 1000000 |
| = | 20 | q | − | 1000000 |
| 0 | = | 20 | q | − | 1000000 |
| - | 20 | q | = | - | 1000000 | − | 0 |
| - | 20 | q | = | - | 1000000 |
| 1000000 | = | 20 | q |
| 20 | q | = | 1000000 |
| q | = | 1000000 | ÷ | 20 |
| = | 1000000 | × | 1 20 |
| = | 50000 | × | 1 |
| q | = | 50000 |