| 4 | × | 1 160 | × | 800 | × | 1 10 | x | = | 800 | × | 1 160 | x | × | 10 | − | 800 | × | 1 160 | × | 10 | × | 1 10 | + | 800 | × | 4 | × | 1 160 | × | 1 10 |
| Left side of the equation = | 2 | x |
| 2 | x | = | 800 | × | 1 160 | x | × | 10 | − | 800 | × | 1 160 | × | 10 | × | 1 10 | + | 800 | × | 4 | × | 1 160 | × | 1 10 |
| Right side of the equation = | 50 | x | − | 5 | + | 20 | + | 9 |
| = | 50 | x | + | 24 |
| 2 | x | = | 50 | x | + | 24 |
| 2 | x | − | 50 | x | = | 24 |
| - | 48 | x | = | 24 |
| - | 24 | = | 48 | x |
| 48 | x | = | - | 24 |
| x | = | - | 24 | ÷ | 48 |
| = | - | 24 | × | 1 48 |
| = | - | 1 | × | 1 2 |
| x | = | - | 1 2 |
| x | = | - 0.5 |