
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Let $\overrightarrow{{e}_{1}}$ and $\overrightarrow{{e}_{2}}$ be non-collinear vectors. If $\overrightarrow{{e}_{1}}-4\overrightarrow{{e}_{2}}$ is collinear with $k\overrightarrow{{e}_{1}}+\overrightarrow{{e}_{2}}$, then the value of the real number $k$ is ____.

Present the answer in LaTex format: \boxed{Your answer}
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