Proof: Divide New 2

Let's prove the following theorem:

if the following are true:
  • a / b = c
  • d = a

then d / b = c

Proof:

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Given
1 a / b = c
2 d = a
Proof Table
# Claim Reason
1 c = d / b if a / b = c and d = a, then c = d / b
2 d / b = c if c = d / b, then d / b = c

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