Answer:
The temperature in Celsius (C) is, 20 degree
Explanation:
As per the statement:
Room temperature is about 68 degrees Fahrenheit (F).
⇒F = 68 degree
Given the equation:

then;

Subtract 32 from both sides we have;

Divide both sides by
we have;
degree
Therefore, the temperature in Celsius (C) is, 20 degree