1. Grace && Allison  && Judy 
Algebra
Grace && Allison  && Judy 
Class: 714
Mrs. Urena
June 2006

2. Introduction
Algebra is a branch of mathematics in which symbols, usually letters of the alphabet, represent numbers or members of a specified set and are used to represent quantities and to express general relationships that hold for all members of the set
Credits:

3. Distributive Property
Given a set S and two binary operations* and + on S, we say that
* is left-distributive over + if, given any elements x, y, and z of S,
x * (y + z) = (x * y) + (x * z);
* is right-distributive over + if, given any elements x, y, and z of S:
(y + z) * x = (y * x) + (z * x);
* is distributive over + if it is both left- and right-distributive.
Notice that when * is commutative, then the three above conditions are logically equivalent.
Credits:

5. Examples of distributive property

6. Multi-step equation
Multi-step equation is an equation that have 3 steps. Here are an example of it.

7. Example of multi-step equation

8. moving variables
Variables are used in open sentences. For instance, in the formula: x + 1 = 5, x is a variable which represents an "unknown" number. In mathematics, variables are usually represented by letters of the Roman alphabet, but are also represented by letters of other alphabets, such as the Greek alphabet, as well as various other symbols.

9. Example of moving variables

11. THE END!