Maths in Bite-sized Chunks by Chris Waring

Author:Chris Waring [Waring, Chris]
Language: eng
Format: epub
Publisher: Michael O'Mara Books

Solving an equation is a bit like playing a game, eliminating things from the seesaw or equation until you have the unknown by itself on one side and a number on the other. We use inverse operations to do the eliminating. Here’s an example with subtraction and division in it:

The game gets slightly harder if you put the unknown on both sides. But only slightly:

It’s always worth remembering that we can check the solutions to equations by putting the number we found back into the original equation. This is called substitution:

5 × −1 + 7

=

3 + −1

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.