| 50000 | = | ( | 500 | ( | 11 | + | 1 | ) | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) | ) | ÷ | ( | 1 | + | X | ) |
| Multiply both sides of the equation by: | ( | 1 | + | X | ) |
| 50000 | ( | 1 | + | X | ) | = | ( | 500 | ( | 11 | + | 1 | ) | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) | ) |
| 50000 | × | 1 | + | 50000 | X | = | ( | 500 | ( | 11 | + | 1 | ) | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) | ) |
| 50000 | × | 1 | + | 50000 | X | = | 500 | ( | 11 | + | 1 | ) | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 500 | ( | 11 | + | 1 | ) | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 500 | × | 11 | + | 500 | × | 1 | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 5500 | + | 500 | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 6000 | + | 2000 | ( | 21 | + | 6 5 | ( | 1 | + | 5 100 | ) | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 6000 | + | 2000 | × | 21 | + | 2000 | × | 6 5 | ( | 1 | + | 5 100 | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 6000 | + | 42000 | + | 2400 | ( | 1 | + | 5 100 | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 48000 | + | 2400 | ( | 1 | + | 5 100 | ) | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 48000 | + | 2400 | × | 1 | + | 2400 | × | 5 100 | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 48000 | + | 2400 | + | 120 | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 50520 | + | 500 | ( | 11 | + | 6 5 | ) |
| 50000 | + | 50000 | X | = | 50520 | + | 500 | × | 11 | + | 500 | × | 6 5 |
| 50000 | + | 50000 | X | = | 50520 | + | 5500 | + | 600 |
| 50000 | + | 50000 | X | = | 56620 |
| 50000 | X | = | 56620 | − | 50000 |
| 50000 | X | = | 6620 |
| X | = | 6620 | ÷ | 50000 |
| = | 6620 | × | 1 50000 |
| = | 331 | × | 1 2500 |
| X | = | 331 2500 |
| X | = | 0.1324 |