Answer :
c=5/9 (f-32)
c = 5/9f-160/9 /*9
9c=5f-160
5f-160=9c
5f=9c+160 /: 5
f = (9c+160)/5
c = 5/9f-160/9 /*9
9c=5f-160
5f-160=9c
5f=9c+160 /: 5
f = (9c+160)/5
C = 5/9(F - 32)
Multiply each side by 9/5 : 9/5 C = F - 32
Add 32 to each side: 9/5 C + 32 = F
Multiply each side by 9/5 : 9/5 C = F - 32
Add 32 to each side: 9/5 C + 32 = F