Language, notation and formulas
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# 2.3 Link words

A lot of people use the equals sign wrongly in places where another word or phrase might actually make the meaning clearer. Sometimes a link word or phrase is useful at the beginning of a mathematical sentence: examples include ‘So’, ‘This implies’ or ‘It follows that’ or ‘Hence’.

## Example 3

Add link words and punctuation to the calculation below to help somebody else to follow it.

## Answer

Notice that mathematical calculations are often easier to read if all the equals signs are aligned underneath one another.

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