42333 1000 | x | + | 2587 10000 | = | 31603 500 | x | + | 433 5000 |
42333 1000 | x | − | 31603 500 | x | = | 433 5000 | − | 2587 10000 |
| - | 20873 1000 | x | = | 433 5000 | − | 2587 10000 |
| - | 20873 1000 | x | = | - | 1721 10000 |
1721 10000 | = | 20873 1000 | x |
20873 1000 | x | = | 1721 10000 |
| x | = | 1721 10000 | ÷ | 20873 1000 |
| = | 1721 10000 | × | 1000 20873 |
| = | 1721 10 | × | 1 20873 |
| x | = | 1721 208730 |
| x | = | 0.008245 |