Sunday, May 8, 2011

Karen's Algebra Post

One-Step Algebra Equations

Steps to solving One Step Algebra Equations:
1: Isolate the variable (variable- a letter representing an unknown/unlike number)
2: Cancel using the opposite; if there's a constant use zero pair
(constant- the integer in an algebraic expression or equation)
3: Balance, do the same on the other side of the equal sign
4: Verify to check- solve to equality

Here are some examples:
A number and 2 is 5. (n + 2 = 5)

The difference of a number and 10 is -21. (n - 10 = -21)
Five times a number is 20. (5 x k = 20/ 5k = 20)

Alge-Tile Example:
A number is divided by 8 is -4. (x ÷ 8 = -4)
Two-Step Algebra Equation

Steps to solving Two Step Algebra Equations:
1: Isolate the variable
2: Cancel the constant
3: Balance
4: Simplify the variable
5: Balance again
6: Verify to check

Multiplication
Ten times a number and 3 is 43. (10g + 3 = 43)

Division
A number is divided by 3 with 5 is 19.

Here are somethings to help:

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