Task 79
Task 79: test task in emrekuruu/math-openenv, an RL environment on the Hugging Face Hub. A line segment has one endpoint at $(3,9)$ and midpoint at $(1,2)$. What is the sum of the coordinates of the other endpoint?
The task
A line segment has one endpoint at $(3,9)$ and midpoint at $(1,2)$. What is the sum of the coordinates of the other endpoint?