How to convert from fahrenheit to celsius

The formula for Fahrenheit and Celsius conversion is 
T(°F) = T(°C) × 1.8 + 32
where T is temperature in F or C ( Fahrenheit or Celsius whatever is the case)
This means that keeping this FORMULA in mind we can add different values to it and  accordingly convert values from one to another.
Some examples of fahrenheit conversions to Celsius are :
32°F = 0°C  using F = (0 x 1.8) + 32

If you HAVE the temp in Fahrenheit and you want to know
what it would be in Celsius, plug the Fahrenheit temp that
you have into this formula:

                  C  =  5/9 (F - 32) .

If you HAVE the temp in Celsius and you want to know
what it would be in Fahrenheit, plug the Celsius temp
that you have into this formula:

                   F  =  1.8 C + 32 .

Iwould say a is accurate