| Giver | Post | Date |
| r1smith | Line l1 has equation x + y = 3 and Line l2 has equation 2x + 2y = 8 | 18-Jan-2024 |
| gaussbonet | Line l1 has equation x + y = 3 and Line l2 has equation 2x + 2y = 8 | 10-Nov-2023 |
| aminneff | Line l1 has equation x + y = 3 and Line l2 has equation 2x + 2y = 8 | 06-Dec-2021 |
| Carcass | Line l1 has equation x + y = 3 and Line l2 has equation 2x + 2y = 8 | 30-Sep-2021 |