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Sometimes you are given a formula that will need to be manipulated to be useful to you. You may have to rearrange the formula to make 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.

Progress