| 450 | − | ( | 450 | − | 50 | ) | X | ( | 334 | + | 50 | ) | = | 237 |
| Left side of the equation = | 450 | − | 450 | X | ( | 334 | + | 50 | ) | + | 50 | X | ( | 334 | + | 50 | ) |
| = | 450 | − | 450 | X | × | 334 | − | 450 | X | × | 50 | + | 50 | X | ( | 334 | + | 50 | ) |
| = | 450 | − | 150300 | X | − | 22500 | X | + | 50 | X | ( | 334 | + | 50 | ) |
| = | 450 | − | 172800 | X | + | 50 | X | ( | 334 | + | 50 | ) |
| = | 450 | − | 172800 | X | + | 50 | X | × | 334 | + | 50 | X | × | 50 |
| = | 450 | − | 172800 | X | + | 16700 | X | + | 2500 | X |
| = | 450 | − | 153600 | X |
| 450 | − | 153600 | X | = | 237 |
| - | 153600 | X | = | 237 | − | 450 |
| - | 153600 | X | = | - | 213 |
| 213 | = | 153600 | X |
| 153600 | X | = | 213 |
| X | = | 213 | ÷ | 153600 |
| = | 213 | × | 1 153600 |
| = | 71 | × | 1 51200 |
| X | = | 71 51200 |
| X | = | 0.001387 |