| 75 | x | ÷ | 1 2 | + | 5 | = | 32 | x | ÷ | 2 5 | + | 12 |
| Left side of the equation = | 150 | x | + | 5 |
| 150 | x | + | 5 | = | 32 | x | ÷ | 2 5 | + | 12 |
| Right side of the equation = | 80 | x | + | 12 |
| 150 | x | + | 5 | = | 80 | x | + | 12 |
| 150 | x | − | 80 | x | = | 12 | − | 5 |
| 70 | x | = | 12 | − | 5 |
| 70 | x | = | 7 |
| x | = | 7 | ÷ | 70 |
| = | 7 | × | 1 70 |
| = | 1 | × | 1 10 |
| x | = | 1 10 |
| x | = | 0.1 |