| ( | x | + | 1600 | ) | × | 12 | + | 2 | x | = | 12 | × | 14000 |
| Left side of the equation = | x | × | 12 | + | 1600 | × | 12 | + | 2 | x |
| = | x | × | 12 | + | 19200 | + | 2 | x |
| = | 14 | x | + | 19200 |
| 14 | x | + | 19200 | = | 12 | × | 14000 |
| Right side of the equation = | 168000 |
| 14 | x | + | 19200 | = | 168000 |
| 14 | x | = | 168000 | − | 19200 |
| 14 | x | = | 148800 |
| x | = | 148800 | ÷ | 14 |
| = | 148800 | × | 1 14 |
| = | 74400 | × | 1 7 |
| x | = | 74400 7 |
| x | = | 10628.571429 |