C= 5/9(F - 32)
Distribute the 5/9
C= 5/9F - (5/9)(32)
C = 5/9F - 17.78
That is the final answer for C. To find F, do this:
C = 5/9F - 17.78
Add 17.78 to both sides
C + 17.78 = 5/9F
Multiply both sides by 9/5 to cancel out the fraction on the left side
9/5C + (9/5)(17.78) = F
F= 9/5C + 32
Hope this helped.