Rearrange Algebraic Formulae

Often we will be presented with a formula that will need to be manipulated in order to be useful to us. 

We may have to rearrange the formula, making a different letter the subject.

Use the rules of equations (i.e. do the same to both sides) to achieve this.

Example:

The formula for finding a temperature in degrees centigrade from one in Fahrenheit is shown below.  

Rearrange the formula to make F the subject.

Answer:

Our aim is to get F on its own on the left-hand side.

And we're there!!

Now it's over to you.