Find the smallest integer $n$ for which the sum of the integers from $-25$ to $n$ (including $-25$ and $n$) is at least $26$.
Question:
Find the smallest integer $n$ for which the sum of the integers from $-25$ to $n$ (including $-25$ and $n$) is at least $26$.
Answer:
Let's think step by step.

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26
Find the smallest integer $n$ for which the sum of the integers from $-25$ to $n$ (including $-25$ and $n$) is at least $26$.
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