Saturday, May 7, 2011

JEREMYS ALGEBRA

One Step Equasions



















Two Step Equasions






















Shenna's Algebra Post

Algebra - Writing mathematical phrases using letters to represent numbers.
Example: n+6=14
                 x-6=3
Variable - a letter that represents a number in an equation or expression
Example: a+11=20
Constant = the integer in an algebraic expression or equation
Example: 18+m=8
Expression -pattern -many answers
Example: 3x
Equation - only has one answer and an equal (=) sign
Example: 3x=9

Solving a One Step Equation:

1st Isolate the variable
2nd Cancel the constant using zero pair
3rd Balance - do it to other side
4th Verify to check

One Step Equations and Models




























































Solving a Two Step Equation

1st Isolate the variable
2nd Cancel the constant
3rd Balance
4th Simplify the variable
5th Balance
6th Verify

Two Step Equations and Models





























One Step equation

Two Step Equation video

Raelynn`s Algebra Post

Algebra - Writing mathematical phrases using letters to represent numbers.
eg. x+8=14, n-9=9

Variable - A letter that represents a number in an algebraic equation or expression.
eg. a+13=15
Constant - The integer in an algebraic equation or expression.
eg. 19+n=9
Expression - Pattern - many answers.
eg. 4x
Equation - Only has one answer and has an equal sign: =.
eg. 4x=12

Solving an Algebraic Equation:
- Isolate the variable
- Cancel the constant using zero pair
- Balance- doing it to both sides
- Verify to check


One-Step Equations:





























Solving a Two Step Equation:
- Isolate the variable
- Cancel the constant
- Balance
- Simplify the variable
- Balance
- Verify


Two-Step Equations:











































Algebra Link.

Friday, May 6, 2011

Jae Anne's Algebra Post

Algebra - writing mathematical phrases using letters to represent numbers.
     n + 5 = 14

Variable - a letter that represents a number in an algebraic expression or equation.
     n + 5 = 14

Constant - the integer in an algebraic expression or equation.
      n + 5 = 14
 Expression - pattern-many answers
      3x

Equation - only has one answer and has an equal sign
     3x = 27


Steps to solve:
 - Isolate the variable.
 - Cancel the constant using zero pair.
 - Balance - do it to the other side.
 - Verify to check.

 
One - Step Equations


Two - Step Equations




Here are some videos that might also help you.



Thursday, May 5, 2011

Paul's Algebra Post

Algebra- Writing mathematical phrases using letters to represent numbers.
ex.
___+3=5,
5-___=2

Solving an Algebraic Equation:
  1. Isolate the variable
  2. Cancel the constant using zero pair
  3. Balance- doing it to both sides
  4. verify to check
Variable- a letter that represents a number in an algebraic equation or expression















Constant
- the integer in an algebraic equation or expression














Expression
-pattern- many answers













Equation
- only has one answer and has an equal sign =














One-Step Equations
























Two-Step Equations














Wednesday, May 4, 2011

Ysabelle's Algebra Post


Algebra

Algebra- branch of mathematics that involves expressions with variables

variable- a symbol which represents any unknown number

constant- integer in an Algebraic expression expression or equation

equation- only has one answer, has an equal sign

expression- has pattern, many answers

Steps to solve:
  1. Isolate the variable.
  2. Cancel the constant using zero pairs.
  3. Balance by doing the same operations on each side.
  4. Verify to check.

One-Step Equations

5) m+4=-12

Solution:

m+4=-12
m=-12-4
m=-16



Verify:

m+4=-12
-16+4=-12
-12=-12

9) v-15=-27

Solution:

v-15=-27
v=-27+15
v=-12





Verify:

v-15=-27
-12-15=-27
-27=-27

19) 21=-7n

Solution:

21=-7n
21/-7=-7n/-7
-3=n


Verify:

21=-7n
21=-7(-3)
21=21


27) v/7=8

Solution:

v/7=8
v/7(7)=8(7)
v=56

Verify:

v/7=8
56/7=8
8=8



Two-Step Equations





9) 5x-1=9

Solution:

5x-1=9
5x=9+1
5x=10
5x/5=10/5
x=2



Verify:

5x-1=9
5(2)-1=9
10-1=9
9=9

21) 9+9n=9

Solution:

9+9n=9
9n=9-9
9n=0
9n/9=0/9
n=0

Verify:
9+9n=9
9+9(0)=9
9=9


Algebra- One-Step Equations

Algebra- writing mathematical phrase using letters to represent numbers

eg.
- __+3=5
- 2πr=c
- πr^2=A
- s^2=A
- 5-___=2
- πd=c
- l x w=A
- l x w x h=v

Steps:
-Isolate the variable
-Cancel the constant using zero pairs
-Balance- do it to the other side
-Verify check