Given that $M( 1, -6)$ is the midpoint of $\overline{AB}$ and $A(-2, 1)$ is one endpoint, what is the sum of the coordinates of point $B$?
Question:
Given that $M( 1, -6)$ is the midpoint of $\overline{AB}$ and $A(-2, 1)$ is one endpoint, what is the sum of the coordinates of point $B$?
Answer:
Let's think step by step.

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Given that $M( 1, -6)$ is the midpoint of $\overline{AB}$ and $A(-2, 1)$ is one endpoint, what is the sum of the coordinates of point $B$?
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