
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
Let B be the cost of one blue pill. Let R be the cost of one red pill. Given that a blue pill costs $\$2$ more than a red pill, then B = R + 2$. Bob needs to take one blue pill and one red pill each day for three weeks, which is 21 days. The total cost of Bob's pills for three weeks is$\$945$. Determine the value of B.

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