The formula for converting degrees Celsius (C) to degrees Fahrenheit (F) is F=9/5C+32 Solve the formula for degrees Celsius (C). Then find the temperature in degrees Celsius (C) when the temperature in degrees Fahrenheit (F) is –4.

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Tranquility · Answer

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F = (9/5)C + 32

To solve for C, follow these steps

We want to isolate C and get it all by itself.
So subtract 32 on both sides of the equation. What do you get?

After that, we'll only have 9/5 C on the right hand side.
We want to get rid of the 9/5 so that C is all by itself.

To do that, we have to multiply by its reciprocal
The reciprocal of a/b is b/a
When we multiply by the reciprocal, it gets rid of the fraction
For example
(3/4)a * 4/3 = a
Because 3/4 * 4/3 = 1

Following those steps, what do you get when you solve the equation for C?

Tranquility · Answer

@dannyward