| 18 | ( | 60 | − | x | ) | + | 26 | x | = | 60 | × | 253 10 |
| Left side of the equation = | 18 | × | 60 | − | 18 | x | + | 26 | x |
| = | 1080 | − | 18 | x | + | 26 | x |
| = | 1080 | + | 8 | x |
| 1080 | + | 8 | x | = | 60 | × | 253 10 |
| Right side of the equation = | 1518 |
| 1080 | + | 8 | x | = | 1518 |
| 8 | x | = | 1518 | − | 1080 |
| 8 | x | = | 438 |
| x | = | 438 | ÷ | 8 |
| = | 438 | × | 1 8 |
| = | 219 | × | 1 4 |
| x | = | 219 4 |
| x | = | 54.75 |