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First, we start by moving the x's all over to one side. These are our undefined variable and it is important to keep them together. To do this, we take away 3x from either side and we get:

3x - 3 &...

The interior angle of a regular shape is the angle found on the inside of the shape at each of its corners. A twelve-sided regular polygon is too complex to remember its geometric rules so we must divide ...

This would be a question that would test the students understanding of Pythagoras' Theorem. When teaching this before I have often found that students are scared of thee questions because of the name, so ...

To find what x is, we must rearrange the equation so that it says x=. To do this we need to get rid of the -3 on the left hand side of the equation. This can be done by adding 3 to both sides of the equat...