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Alphabet Soup

Remember when you first learned your ABC's - you learned a is for apple, b is for ball, etc.

Math also uses ABC's, but they are called variables.

 

With numbers:

1 always means 1 item,

5 always means 5 items

 

Hard Part:

Variables value can change, not like numbers. That is why vary is the first part of their name .

With Variables -

Sometimes the value of the variable is given.

Sometimes the value of the variable is not given.

For example:

The expression could say - simplify (think solve) for b = 9

1) 2b (submitting 9 for b)

becomes 2(9) = 18

or

The expression could say - simplify (think solve)

1) 7n + 5 - 4n - 8

when like terms are combined

becomes 3n - 3

Everything you can do with numbers you can do with variables,

+

Substituting c (a variable) for the cherry

c + c = 2c

2 cherries - just like with numbers only

If b = 3 bananas

2b would simplify into

2() or 6

 

If you had any problems in the past with adding, subtracting , multiplying or dividing whole numbers or decimals go back and review that material.

If you had any problems in the past with fractions, especially multiplying or dividing, go back and review that material.

Knowledge of fractions is useful when solving equations

Algebra Made Easy
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Write Algebric Expression - Multipicaton

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Absolute Value and Open Sentences

Radicals - Basics

Matrix
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Inverse

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