Find the numerical value of $k$ for which
\[\frac{7}{x + y} = \frac{k}{x + z} = \frac{11}{z - y}.\]
Question:
Find the numerical value of $k$ for which
\[\frac{7}{x + y} = \frac{k}{x + z} = \frac{11}{z - y}.\]
Answer:
Let's think step by step.

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18
Find the numerical value of $k$ for which
\[\frac{7}{x + y} = \frac{k}{x + z} = \frac{11}{z - y}.\]
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