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14 July 2009
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Equations 1

In this Revision Bite we are going to look at different types of equations, and some methods for solving them.

'I think of a number, add four, and the answer is seven.'

Written algebraically, this statement becomes 'x + 4 = 7',
where 'x' represents my number.

'x + 4 = 7' is an example of an algebraic equation. The letter x represents an unknown number.

We can see from the statement that the number we first thought of must be three (3 + 4 = 7). Therefore, x = 3 is the solution of the equation.

Not all equations are as easy to solve as this one, however!

In this Revision Bite we are going to look at:

Balancing the equation
Solving more complex equations

Printable Version

Intro 1 2 3

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