
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
The perimeter of a triangle is 15 cm, and each of two sides is equal to twice the length of the third side. Let's denote the length of the shortest side as x. Express the lengths of the other two sides in terms of x and set up an equation to solve for x.

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