The linear equation that converts Fahrenheit (F) to Celsius (C) is given by the relation,

(i) if the temperature is 86°F, what is the temperature in Celsius ?

(ii) If the temperature is 35°C, what is the temperature in Fahrenheit ?

(iii) If the temperature is 0°C, what is the temperature in Fahrenheit and if the temperature is 0°F, what is the temperature in Celsius?

(iv) What is the numerical value of the temperature which is same in both the scale ?