| 20000 | + | 6 | x | × | 250 | = | 4 | x | × | 5000 |
| Left side of the equation = | 20000 | + | 1500 | x |
| 20000 | + | 1500 | x | = | 4 | x | × | 5000 |
| Right side of the equation = | 20000 | x |
| 20000 | + | 1500 | x | = | 20000 | x |
| 1500 | x | − | 20000 | x | = | - | 20000 |
| - | 18500 | x | = | - | 20000 |
| 20000 | = | 18500 | x |
| 18500 | x | = | 20000 |
| x | = | 20000 | ÷ | 18500 |
| = | 20000 | × | 1 18500 |
| = | 40 | × | 1 37 |
| x | = | 40 37 |
| x | = | 1.081081 |