Respostas

2014-02-18T12:16:15-03:00
 \frac{F -32}{9}  =\frac{C}{5}

F = 2C

 \frac{2C -32}{9}  =\frac{C}{5}

10C - 160 = 9C
- 160C = 9C - 10C

160° = C