| ( | x | + | 24 | ) | × | 10 | ÷ | 2 | − | ( | 24 | − | x | ) | × | 10 | ÷ | 2 | = | 150 |
| Left side of the equation = | ( | x | + | 24 | ) | × | 5 | − | ( | 24 | − | x | ) | × | 5 |
| ( | x | + | 24 | ) | × | 5 | − | ( | 24 | − | x | ) | × | 5 | = | 150 |
| Left side of the equation = | x | × | 5 | + | 24 | × | 5 | − | ( | 24 | − | x | ) | × | 5 |
| = | x | × | 5 | + | 120 | − | ( | 24 | − | x | ) | × | 5 |
| = | 5 | x | + | 120 | − | 24 | × | 5 | + | x | × | 5 |
| = | 5 | x | + | 120 | − | 120 | + | x | × | 5 |
| = | 10 | x | + | 0 |
| 10 | x | + | 0 | = | 150 |
| x | = | 150 | ÷ | 10 |
| = | 150 | × | 1 10 |
| = | 15 | × | 1 |
| x | = | 15 |