
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
During her trip from the United States to Europe, Jennifer exchanged $d$ U.S. dollars into Euros, receiving 8 Euros for every 5 U.S. dollars. After spending 80 Euros, Jennifer had $d$ Euros remaining. Express $d$ in terms of the number of U.S. dollars she exchanged.

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