Trish's Algebra Post

Algebra- Writing mathematical phrases using letters to represent numbers.

ex. 2x = 10
100 / x =5'


Easy Steps to Solve an Algebra equation :

1. Isolate the variable ( Variable - a letter that represents a number in an algebraic equation or expression)


2. Cancel the constant using zero pair ( Constant - the integer in an algebraic equation or expression)
   


3. Balance- doing it to both sides


4. Verify to check ( equality )

Expression: pattern- many answers
ex. 5x

Equation: only has one answer- has an equal sign
ex. 5x=25

HOW TO SOLVE ONE STEP EQUATIONS -

Just use the 4 steps of solving an Algebra Equation and you'll do fine,

• Isolate the variable
• Cancel the constant using zero pair
  


• Balance- doing it to both sides


• Verify to check ( equality )

For example,





Multiplying One Step Equations


Use the 4 steps again :

1. Isolate the variable


2. Cancel the constant using zero pair
   


3. Balance- doing it to both sides


4. Verify to check ( equality )

Inspection :

With Algetiles :

Dividing One step Equations :


Inspection :

With Algetiles

2 Step Equations :
Always use the 4 Steps :

1. Isolate the variable


2. Cancel the constant using zero pair
   


3. Balance- doing it to both sides


4. Verify to check ( equality )

ALGETILES :

Verifying :



Links that may help you :


http://www.algebrahelp.com/
http://www.mathgoodies.com/lessons/vol7/equations.html
http://www.purplemath.com/modules/solvelin.htm


Videos :

One Step Equation :



Two Step Equation :