| 1 | ( | 1 | − | x | ) | + | x | × | 4 | = | 5 | ( | 1 | − | x | ) | + | 0 | x |
| Left side of the equation = | 1 | × | 1 | − | 1 | x | + | 4 | x |
| = | 1 | − | 1 | x | + | 4 | x |
| = | 1 | + | 3 | x |
| 1 | + | 3 | x | = | 5 | ( | 1 | − | x | ) | + | 0 | x |
| Right side of the equation = | 5 | × | 1 | − | 5 | x | + | 0 | x |
| = | 5 | − | 5 | x | + | 0 | x |
| = | 5 | − | 5 | x |
| 1 | + | 3 | x | = | 5 | − | 5 | x |
| 3 | x | + | 5 | x | = | 5 | − | 1 |
| 8 | x | = | 5 | − | 1 |
| 8 | x | = | 4 |
| x | = | 4 | ÷ | 8 |
| = | 4 | × | 1 8 |
| = | 1 | × | 1 2 |
| x | = | 1 2 |
| x | = | 0.5 |