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This is an example of a linear equation. 
To find x we can apply the same operations to both sides in order to isolate x.
First we can subtract 6 from both sides.
This gives us 4x on the le...

To rearrange a formula, it is required that you group variables in certain ways, to leave you with the desired form.

For example,

Rearrange y=3x^2+3 to make x...

The Pythagoras Theorem only works with right-angled triangles. If you see a triangle other than right-angled triangles, then you do not need to apply the Pythagoras Theorem. The right-angled triangle h...

There are loads of different ways to solve quadratics, and most of the time there isn't only one right way to solve them.

there's three main ways that you can use to solve quadratics: fac...