| X | − | 900 | − | ( | 13 100 | X | − | 50 | X | ÷ | 10000 | ) | × | 11 10 | = | 0 |
| Left side of the equation = | X | − | 900 | − | 13 100 | X | × | 11 10 | + | 50 | X | ÷ | 10000 | × | 11 10 |
| = | X | − | 900 | − | 143 1000 | X | + | 11 2000 | X |
| = | 69 80 | X | − | 900 |
69 80 | X | − | 900 | = | 0 |
69 80 | X | = | 0 | + | 900 |
69 80 | X | = | 900 |
| X | = | 900 | ÷ | 69 80 |
| = | 900 | × | 80 69 |
| = | 300 | × | 80 23 |
| X | = | 24000 23 |
| X | = | 1043.478261 |