**Algebra is
arithmetic with letters. An arithmetic example would be 3 + 4
= The same example**

**written****
as an algebra problem would be 3 +
4 = r In both cases the answer is
7. **

**Letters are
symbols in algebra and are called variables or unknowns. Humans use a lot of
symbols. **

**For example
your name is a symbol. You can change your name and you will still be the same
person.**

**In the above
problem we could use t or x or u or any thing we want instead of r. The result
would **

**still****
be 7. **

**Remember math
is a language and it has sentences and symbols the same as English and Spanish have.**

**Words are
symbols. ex high school **

**Let us look at
some nice easy problems: 3 x 4 = 12 If you
remember from the 4th grade**

**you****
could prove your answer in multiplication was correct by dividing the answer by
one **

**of****
the factors.( a factor is the numbers or letters that are multiplied together -
ex 3 and 4 are factors)**

**Your answer
after you divided would be the other factor ex 3 x 4 = 12 4 = 12/3**

**This concept is useful in algebra**

** 3 x 4 =
12
4 = 12/3 3 =
12/4 Lets
look at an algebra problem **

**
7 x t =
14
t = 14/7 hence t = 2 Notice we
are using the concept from **

**arithmetic****
to solve an algebra problem. Now in algebra we usually write 7 x t = 14
as 7t = 14**

**7t by definition
means 7 x t or t multiplied by seven. Is
7 = 14/t ?
**

**REMEMBER: **__Algebra is arithmetic with
letters. __

** **