
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
Define a new operation "$\circ$" by \(x\circ y=4x-2y+2xy\), for all real numbers \(x\) and \(y\). Find the number \(y\) such that \(5\circ y = 20\).
A) \( y = -5 \)\\
B) \( y = 0 \)\\
C) \( y = 5 \)\\
D) \( y = 10 \)

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