
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
Xiaogang plans to use his saved pocket money to buy an MP4 for learning English. He already has 50 yuan and plans to save 30 yuan per month from this month until he has at least 280 yuan. If $x$ months later Xiaogang has at least 280 yuan, express the inequality to calculate the number of months.

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