Solve for F, C=5/9(F-32)

Answer 1

C = (5/9)(F-32)

water boils at 212 degrees F = 100 degree C

100 = 5/9(212-32) = (5/9)180= 5(20)

9C = 5F -160

5F = 9C+160

F = 9C/5 + 160/5

F = (9/5)C + 32

F(212) = (9/5)(100)+32 = 9(20)+32 = 180+32=212

for freezing water:

F(32) = (9/5)(0) +32 = 0+32 = 32