| Giver | Post | Date |
| marios | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 23-Oct-2022 |
| poornaabhijith | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 29-Aug-2022 |
| PreranaN | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 13-Jun-2022 |
| NemoNobody | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 25-Jun-2021 |
| ElizabethCM | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 19-Oct-2019 |
| oqureshi | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 29-Dec-2018 |
| preeta | GRE Math Challenge #11 - Set A: {x, x, x, y, y, y, 3x+y, x–y | 27-Sep-2016 |