Jawabanmu

2014-01-27T05:53:10+07:00
°F = (°C * 9/5) + 32
°C = (°F - 32) * 5/9


substitusikan  agar f=c

 °C = (°C * 9/5) + 32
°C - (°C * 9/5) = 32
-4/5 * °C = 32
°C = -32 * 5/4
°C = -40



°F = (°F * 9/5) + 32
°F - (°F * 9/5) = 32
-4/5 * °F = 32
°F = -32 * 5/4
°F = -40