| 0 | = | X | × | 19 25 | − | 160 | − | ( | 5000 | + | X | ) | × | 8 100 | ( | 1 | − | 50 100 | ) |
| Right side of the equation = | 19 25 | X | − | 160 | − | 5000 | × | 8 100 | ( | 1 | − | 50 100 | ) | − | X | × | 8 100 | ( | 1 | − | 50 100 | ) |
| = | 19 25 | X | − | 160 | − | 400 | ( | 1 | − | 50 100 | ) | − | X | × | 8 100 | ( | 1 | − | 50 100 | ) |
| = | 19 25 | X | − | 160 | − | 400 | × | 1 | + | 400 | × | 50 100 | − | X | × | 8 100 | ( | 1 | − | 50 100 | ) |
| = | 19 25 | X | − | 160 | − | 400 | + | 200 | − | X | × | 8 100 | ( | 1 | − | 50 100 | ) |
| = | 19 25 | X | − | 360 | − | X | × | 8 100 | ( | 1 | − | 50 100 | ) |
| = | 19 25 | X | − | 360 | − | X | × | 8 100 | × | 1 | + | X | × | 8 100 | × | 50 100 |
| = | 19 25 | X | − | 360 | − | X | × | 2 25 | + | X | × | 1 25 |
| = | 18 25 | X | − | 360 |
| 0 | = | 18 25 | X | − | 360 |
| - | 18 25 | X | = | - | 360 | − | 0 |
| - | 18 25 | X | = | - | 360 |
| 360 | = | 18 25 | X |
18 25 | X | = | 360 |
| X | = | 360 | ÷ | 18 25 |
| = | 360 | × | 25 18 |
| = | 20 | × | 25 |
| X | = | 500 |