F == C: I did the math
F == C
F == 32 + 9/5 C
F == C == 32 + 9/5 C
C - 9/5 C == 32
5/5 C - 9/5 C == -4/5 C == 32
4/5 C == -32
1/5 C == -8
C == -40
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