Question

Como converter 120 graus Celsius a Fahrenheit

Answer 1

$\frac{C}{5} = \frac{F-32}{9} \\ \\ \frac{120}{5} = \frac{F-32}{9} \\ \\ (F-32)*5=120*9 \\ 5F-160=1080 \\ 5F=1080+160 \\ 5F=1240 \\ F=1240:5 \\ F=248^{o}$

Espero ter ajudado. Valeu!