| ( | 257 250 | − | X | ) | ÷ | 257 250 | = | 39 2000 |
| Left side of the equation = | 257 250 | × | 250 257 | − | X | × | 250 257 |
| = | 1 | − | X | × | 250 257 |
| 1 | − | 250 257 | X | = | 39 2000 |
| - | 250 257 | X | = | 39 2000 | − | 1 |
| - | 250 257 | X | = | - | 1961 2000 |
1961 2000 | = | 250 257 | X |
250 257 | X | = | 1961 2000 |
| X | = | 1961 2000 | ÷ | 250 257 |
| = | 1961 2000 | × | 257 250 |
| X | = | 503977 500000 |
| X | = | 1.007954 |