
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
Determine which of the following equations does not describe $y$ as either directly or inversely proportional to $x$:
1. $x^2 + y^2 = 16$
2. $2x + 3y = 6$
3. $xy = 5$
4. $x = 7y$
5. $\frac{x}{y} = 2$
A) $x^2 + y^2 = 16$
B) $2x + 3y = 6$
C) $xy = 5$
D) $x = 7y$
E) $\frac{x}{y} = 2$

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