| ( | 52 | − | x | ) | × | 52 | = | 377 10 |
| Left side of the equation = | 52 | × | 52 | − | x | × | 52 |
| = | 2704 | − | x | × | 52 |
| 2704 | − | 52 | x | = | 377 10 |
| - | 52 | x | = | 377 10 | − | 2704 |
| - | 52 | x | = | - | 26663 10 |
26663 10 | = | 52 | x |
| 52 | x | = | 26663 10 |
| x | = | 26663 10 | ÷ | 52 |
| = | 26663 10 | × | 1 52 |
| = | 2051 10 | × | 1 4 |
| x | = | 2051 40 |
| x | = | 51.275 |