| x | × | 584 | + | ( | x | + | 100 | ) | × | 20 | + | ( | x | + | 200 | ) | × | 7 | + | 48000 | + | x | × | 59 | + | ( | x | + | 200 | ) | × | 14 | = | 1438800 |
| Left side of the equation = | 643 | x | + | ( | x | + | 100 | ) | × | 20 | + | ( | x | + | 200 | ) | × | 7 | + | 48000 | + | ( | x | + | 200 | ) | × | 14 |
| 643 | x | + | ( | x | + | 100 | ) | × | 20 | + | ( | x | + | 200 | ) | × | 7 | + | 48000 | + | ( | x | + | 200 | ) | × | 14 | = | 1438800 |
| Left side of the equation = | 643 | x | + | x | × | 20 | + | 100 | × | 20 | + | ( | x | + | 200 | ) | × | 7 | + | 48000 | + | ( | x | + | 200 | ) | × | 14 |
| = | 643 | x | + | x | × | 20 | + | 2000 | + | ( | x | + | 200 | ) | × | 7 | + | 48000 | + | ( | x | + | 200 | ) | × | 14 |
| = | 663 | x | + | 50000 | + | ( | x | + | 200 | ) | × | 7 | + | ( | x | + | 200 | ) | × | 14 |
| = | 663 | x | + | 50000 | + | x | × | 7 | + | 200 | × | 7 | + | ( | x | + | 200 | ) | × | 14 |
| = | 663 | x | + | 50000 | + | x | × | 7 | + | 1400 | + | ( | x | + | 200 | ) | × | 14 |
| = | 670 | x | + | 51400 | + | ( | x | + | 200 | ) | × | 14 |
| = | 670 | x | + | 51400 | + | x | × | 14 | + | 200 | × | 14 |
| = | 670 | x | + | 51400 | + | x | × | 14 | + | 2800 |
| = | 684 | x | + | 54200 |
| 684 | x | + | 54200 | = | 1438800 |
| 684 | x | = | 1438800 | − | 54200 |
| 684 | x | = | 1384600 |
| x | = | 1384600 | ÷ | 684 |
| = | 1384600 | × | 1 684 |
| = | 346150 | × | 1 171 |
| x | = | 346150 171 |
| x | = | 2024.269006 |