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METEOROLOGIST JEFF HABY. F = 9/5*C + 32. To find the temperature both scales are equal we can use another equation and combine it with this previous equation. The equation is simply F = C. Plug in for F or C and solve. C = 9/5*C + 32. -4/5*C = 32. F = 9/5*F + 32. -4/5*F = 32. Thus, at the cold temperature of negative 40, this temperature is the same on both the Fahrenheit and Celsius temperature scales.
The Fahrenheit equivalent of 23 degrees Celsius is 73.4 degrees. The formula for conversion is Fahrenheit equals 9/5 (Celsius) plus 32. A simple way to arrive at a Fahrenheit equivalent is to multiply the Celsius temperature, in this case 23 degrees, by 1.8 and then add 32 to the product.