Answer
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Step 1:Let's solve this step by step:
Step 2:: Rearrange the original formula F = \frac{9}{5}C + 32 to solve for C
\frac{5}{9}(F - 32) = C
Subtract 32 from both sides:
Step 3:: Convert 68^{\circ} \mathrm{F} to Celsius using the derived formula
C = 20
Step 4:: Verify the solution
The conversion is $$68^{\circ} \mathrm{F} = 20^{\circ} \mathrm{C}
Final Answer
Option C is correct.
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