| 9 | ÷ | 8 | × | ( | 3 | ÷ | 2 | × | X | + | 500 | ) | + | 400 | = | 2 | X |
| Left side of the equation = | 9 8 | ( | 3 | ÷ | 2 | × | X | + | 500 | ) | + | 400 |
9 8 | ( | 3 | ÷ | 2 | × | X | + | 500 | ) | + | 400 | = | 2 | X |
| Left side of the equation = | 9 8 | × | 3 | ÷ | 2 | × | X | + | 9 8 | × | 500 | + | 400 |
| = | 27 16 | X | + | 1125 2 | + | 400 |
| = | 27 16 | X | + | 1925 2 |
27 16 | X | + | 1925 2 | = | 2 | X |
27 16 | X | − | 2 | X | = | - | 1925 2 |
| - | 5 16 | X | = | - | 1925 2 |
1925 2 | = | 5 16 | X |
5 16 | X | = | 1925 2 |
| X | = | 1925 2 | ÷ | 5 16 |
| = | 1925 2 | × | 16 5 |
| = | 385 | × | 8 |
| X | = | 3080 |