The Celsius to Fahrenheit conversion is F = (9/5) C + 32. To go the other way, you must invert this linear function. How do you do that?
I know there is a simple way to solve this question, but I can't figure out how to set up the next step of the problem.
If Fareinheit temperature is 85, and the formula for Celsius conversion is 9/5C+32, what is the Celsius temperature?