Given the relation between The temperature in degrees Fahrenheit, F, is related to the temperature in degrees Celsius, C, by the equation:

a) If C = 50 , F = ??
So, substitute with C at the given equation :

b) When F = -60 , We need to find C = ?
So, substitute with F and find C

c) when need to solve the equation in case of : C = F
So, Substitute with F = C , then solve for C

Multiply the all terms by 5 :

In the case of F = C , Both of them will be equal -40
