
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
In the diagram below, lines $m$ and $n$ are parallel. A transversal cuts through these lines forming an angle of $40^\circ$ at point A on line $m$. Find the measure of angle $y$ in degrees, where angle $y$ is supplementary to the corresponding angle on line $n$ formed by the same transversal.

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