| 2 | × | 1 50 | ( | 613 100 | + | 151 50 | − | X | ) | ÷ | 50 | × | 1000 | = | 0 |
| Left side of the equation = | 4 5 | ( | 613 100 | + | 151 50 | − | X | ) |
4 5 | ( | 613 100 | + | 151 50 | − | X | ) | = | 0 |
| Left side of the equation = | 4 5 | × | 613 100 | + | 4 5 | × | 151 50 | − | 4 5 | X |
| = | 613 125 | + | 302 125 | − | 4 5 | X |
| = | 183 25 | − | 4 5 | X |
183 25 | − | 4 5 | X | = | 0 |
| - | 4 5 | X | = | 0 | − | 183 25 |
| - | 4 5 | X | = | - | 183 25 |
183 25 | = | 4 5 | X |
4 5 | X | = | 183 25 |
| X | = | 183 25 | ÷ | 4 5 |
| = | 183 25 | × | 5 4 |
| = | 183 5 | × | 1 4 |
| X | = | 183 20 |
| X | = | 9.15 |