| - | 1 2 | m | + | 2 | = | - | 1 | ÷ | 2 | × | ( | 3 | m | − | 1 | ) |
| Right side of the equation = | - | 1 2 | ( | 3 | m | − | 1 | ) |
| - | 1 2 | m | + | 2 | = | - | 1 2 | ( | 3 | m | − | 1 | ) |
| Right side of the equation = | - | 1 2 | × | 3 | m | + | 1 2 | × | 1 |
| = | - | 3 2 | m | + | 1 2 |
| - | 1 2 | m | + | 2 | = | - | 3 2 | m | + | 1 2 |
| - | 1 2 | m | + | 3 2 | m | = | 1 2 | − | 2 |
| m | = | 1 2 | − | 2 |
| m | = | 1 2 | − | 2 |
| m | = | - | 3 2 |