| - | 1 | ÷ | 2 | × | m | + | 2 | = | 2 | ( | m | + | 1 | ÷ | 2 | ) |
| Left side of the equation = | - | 1 2 | m | + | 2 |
| - | 1 2 | m | + | 2 | = | 2 | ( | m | + | 1 | ÷ | 2 | ) |
| Right side of the equation = | 2 | m | + | 2 | × | 1 | ÷ | 2 |
| = | 2 | m | + | 1 |
| - | 1 2 | m | + | 2 | = | 2 | m | + | 1 |
| - | 1 2 | m | − | 2 | m | = | 1 | − | 2 |
| - | 5 2 | m | = | 1 | − | 2 |
| - | 5 2 | m | = | - | 1 |
| 1 | = | 5 2 | m |
5 2 | m | = | 1 |
| m | = | 1 | ÷ | 5 2 |
| = | 1 | × | 2 5 |
| m | = | 2 5 |
| m | = | 0.4 |