Answer:
[tex]c = - \frac{160}{9} + \frac{5}{9} f[/tex]
Step-by-step explanation:
[tex]f = \frac{9}{5} c + 32[/tex]
[tex]5f = 9c + 160[/tex]
[tex] - 9c = 160 - 5f[/tex]
[tex]c = - \frac{160}{9} + \frac{5}{9} f[/tex]
[tex]c = - \frac{160}{9} + \frac{5}{9} f[/tex]