Find the positive base $b$ in which the equation $5 \cdot 25_b = 137_b$ is valid.
Question:
Find the positive base $b$ in which the equation $5 \cdot 25_b = 137_b$ is valid.
Answer:
Let's think step by step.

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Find the positive base $b$ in which the equation $5 \cdot 25_b = 137_b$ is valid.
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