| 1 | × | 1 2 | − | 1 2 | x | = | - | 7 | × | 1 10 |
| Left side of the equation = | 1 2 | − | 1 2 | x |
1 2 | − | 1 2 | x | = | - | 7 | × | 1 10 |
| Right side of the equation = | - | 7 10 |
1 2 | − | 1 2 | x | = | - | 7 10 |
| - | 1 2 | x | = | - | 7 10 | − | 1 2 |
| - | 1 2 | x | = | - | 6 5 |
6 5 | = | 1 2 | x |
1 2 | x | = | 6 5 |
| x | = | 6 5 | ÷ | 1 2 |
| = | 6 5 | × | 2 |
| x | = | 12 5 |
| x | = | 2.4 |