| 120 | × | 38 100 | + | 1 2000 | X | = | 34 100 | ( | 120 | − | X | ) |
| Left side of the equation = | 228 5 | + | 1 2000 | X |
228 5 | + | 1 2000 | X | = | 34 100 | ( | 120 | − | X | ) |
| Right side of the equation = | 34 100 | × | 120 | − | 34 100 | X |
| = | 204 5 | − | 34 100 | X |
228 5 | + | 1 2000 | X | = | 204 5 | − | 34 100 | X |
1 2000 | X | + | 34 100 | X | = | 204 5 | − | 228 5 |
681 2000 | X | = | 204 5 | − | 228 5 |
681 2000 | X | = | - | 24 5 |
| X | = | - | 24 5 | ÷ | 681 2000 |
| = | - | 24 5 | × | 2000 681 |
| = | - | 8 | × | 400 227 |
| X | = | - | 3200 227 |
| X | = | - 14.096916 |