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# Maths Revision

The How To maths guide!
by

## Anya Perry

on 23 April 2010

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#### Transcript of Maths Revision

Maths Revision Guide! Lets start with solving Equations :) So, you've got the question, 5a-3(a-1)=39 First of all, we need to times each number in the bracket by -3. 5a-3(a-1)=39
Times bracket number by -3
5a-3a+3=36 Now we need to take away 3. Remember to take away from both sides of the equal sign. So this would leave you with 5a-3a=36. Now we need to simplify the equation. So this makes it 2a=36. Now to find out what a is so we need to divide by 2. So we finish with a=18. Now lets work on fractions! Lets say we have this question

11 13
-- + --
20 14

1) We need to get a common denominator, we do
this by x 20 by 14 So, now we have 11 13
-- --
280 280 Now we have to times
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