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Alpha Teach Yourself Algebra I in 24 Hours by Jane Cook

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Hours 4
Real Numbers: Properties and Rules
Now that you know the basic operations of adding, subtracting, multiplying, and dividing positive and negative numbers, in this hour you learn the algebraic properties or rules that go beyond the four operations. These properties lay the groundwork for working with algebraic expressions—from the simple to the more complex.

Identifying the Properties of Real Numbers

Algebraic properties are much like the rules you learn for playing a sport such as football or basketball. These games would be chaotic without an agreed-upon set of standards, and it’s the same for algebra.
 
Properties lay a strong foundation and give algebra its consistency and predictability. Unlike the English language, with so many ...

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