207 1000 | = | 39389 100000 | x | + | 83 10000 |
| - | 39389 100000 | x | = | 83 10000 | − | 207 1000 |
| - | 39389 100000 | x | = | - | 1987 10000 |
1987 10000 | = | 39389 100000 | x |
39389 100000 | x | = | 1987 10000 |
| x | = | 1987 10000 | ÷ | 39389 100000 |
| = | 1987 10000 | × | 100000 39389 |
| = | 1987 | × | 10 39389 |
| x | = | 19870 39389 |
| x | = | 0.504456 |