| 1) 8 | 17 | – (x – 5 | 8 | ) = 1 | 23 | ; |
| 35 | 35 | 35 |
| x – 5 | 8 | = 8 | 17 | – 1 | 23 | ; |
| 35 | 35 | 35 |
| x – 5 | 8 | = 6 | 29 | ; |
| 35 | 35 |
| x = 6 | 29 | + 5 | 8 | ; |
| 35 | 35 |
| x = 12 | 2 | ; |
| 35 |
| 2) (10 | 4 | – x) – 5 | 11 | = 3 | 8 | ; |
| 13 | 13 | 13 |
| 10 | 4 | – x = 3 | 8 | + 5 | 11 | ; |
| 13 | 13 | 13 |
| 10 | 4 | – x = 9 | 6 | ; |
| 13 | 13 |
| x = 10 | 4 | – 9 | 6 | ; |
| 13 | 13 |
| x = | 11 | . |
| 13 |