29 50 | ( | 2650 | − | X | ) | = | 87 2 |
| Left side of the equation = | 29 50 | × | 2650 | − | 29 50 | X |
| = | 1537 | − | 29 50 | X |
| 1537 | − | 29 50 | X | = | 87 2 |
| - | 29 50 | X | = | 87 2 | − | 1537 |
| - | 29 50 | X | = | - | 2987 2 |
2987 2 | = | 29 50 | X |
29 50 | X | = | 2987 2 |
| X | = | 2987 2 | ÷ | 29 50 |
| = | 2987 2 | × | 50 29 |
| = | 103 | × | 25 |
| X | = | 2575 |