
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
Suppose that at a constant temperature, the rate of dissolution of a solid in a liquid is proportional to the amount of this substance that can still dissolve in the liquid before saturation is reached (it is assumed that the substances in the solution do not chemically react with each other, and the solution is far from saturation, as otherwise the linear rate law would not apply). Find the dependence of the amount of dissolved substance on time.

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