19 20 | ( | 1205 | + | x | ) | = | 1132 | + | x |
| Left side of the equation = | 19 20 | × | 1205 | + | 19 20 | x |
| = | 4579 4 | + | 19 20 | x |
4579 4 | + | 19 20 | x | = | 1132 | + | x |
19 20 | x | − | x | = | 1132 | − | 4579 4 |
| - | 1 20 | x | = | 1132 | − | 4579 4 |
| - | 1 20 | x | = | - | 51 4 |
51 4 | = | 1 20 | x |
1 20 | x | = | 51 4 |
| x | = | 51 4 | ÷ | 1 20 |
| = | 51 4 | × | 20 |
| = | 51 | × | 5 |
| x | = | 255 |