The variable FF represents the temperature in degrees Fahrenheit that is equivalent to CC, the temperature in degrees Celsius. F=32+1.8C

c=0.56f-17.78

c=-17.2

Step-by-step explanation:

f=32+1.8c then flip the equation,

1.8c+32=f then add 32 to both sides

1.8c+32+-32=f+-32 then divide both sides by 1.8.

1.8c / 1.8

= f-32 / 1.8

answer : c=0.555556f-17.777778 which is the same as c=-17.2

sorry if i am wrong