| x | ÷ | 339 | + | ( | 1 | − | x | ) | ÷ | 39 | = | 39 2500 |
| Left side of the equation = | 1 339 | x | + | 1 | × | 1 39 | − | x | × | 1 39 |
| = | 1 339 | x | + | 1 39 | − | x | × | 1 39 |
| = | - | 100 4407 | x | + | 1 39 |
| - | 100 4407 | x | + | 1 39 | = | 39 2500 |
| - | 100 4407 | x | = | 39 2500 | − | 1 39 |
| - | 100 4407 | x | = | - | 979 97500 |
979 97500 | = | 100 4407 | x |
100 4407 | x | = | 979 97500 |
| x | = | 979 97500 | ÷ | 100 4407 |
| = | 979 97500 | × | 4407 100 |
| = | 979 2500 | × | 113 100 |
| x | = | 110627 250000 |
| x | = | 0.442508 |