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Agenda October 15

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Warm Up Go Over Homework Solving One Step Equations Review Homework Warm Up To simplify an expression using the order of operations, complete the following: Simplify ... – PowerPoint PPT presentation

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Title: Agenda October 15


1
Agenda October 15
  • Warm Up
  • Go Over Homework
  • Solving One Step Equations Review
  • Homework

2
Warm Up
  • To simplify an expression using the order of
    operations, complete the following
  • Simplify brackets or _____________ first.
  • Simplify any _____ _____ or _________ next.
  • Complete any _________ or __________ whichever
    comes first left to right.
  • Complete any addition or ___________ whichever
    comes first ____ to _____.
  • Simplify

3
Go Over Homework
  • Pizzazz page 10
  • Shewaspracticingforamoonshot
  • Pizzazz page 20
  • Whenyournoserunsandyourfeetsmell

4
Solving one step equations
  • When solving an equation, the goal is to get the
    variable by itself on one side of the equation.
  • Addition and subtraction are inverse operations.
    (opposites)
  • Multiplication and division are inverse
    operations. (opposites)

5
Properties of Equality
  • 1. Addition If a b then a c b c.
  • 2. Subtraction If a b then a c b c.
  • 3. Multiplication If a b then ac bc.
  • 4. Division If a b and c ? 0 then a/c b/c

6
Solving Equations Requires BALANCE!
  • Your equals sign will be the fulcrum (balancing
    point)!
  • Just remember, whatever you do to one side must
    be done to the other side to maintain balance..

7
Addition / Subtraction
  • If the number to move is positive, subtract it
    from both sides of the equation.
  • If the number to move is negative, add its
    positive value to both sides of the equation.

8
Solving with Addition
  • Solve the following equation for x
  • x 4 9
  • 4 4
  • x 13
  • We are able to get the x by itself
  • by ADDING 4 to each side!
  • (you WILL show this step in your homework!!)

9
Solving with Subtraction
  • Solve the following equation for p
  • p 7 21
  • - 7 - 7
  • p 14
  • We are able to get the p by itself
  • by SUBTRACTING 7 from each side!
  • (you WILL show this step in your homework!!)

10
Solving with Division
  • Solve the following equation
    for m
  • 3 m 18
  • Divide both sides by 3 and simplify -- your work
    should look like this
  • 3 m 18
  • 3
    3
  • m 6
  • (you WILL show this step in your homework!!)

11
Solving with Multiplication
  • Problems involving fractions are solved using
    multiplication, and the knowledge of
    multiplicative inverses (reciprocals)

12
Example
  • Solve the following equation for n
  • 2n 3
  • 5 7
  • Multiply each side by the inverse of 25
  • 5 2n
    3 5
  • 2 5 7 2
  • n 15

  • 14

13
Your Turn
  • Solve the following equations with one step (show
    your work!!)
  • r 4 17
  • g - 15 -11
  • 13 p - 9
  • -5b 85
  • - 7v - 91
  • w -2
  • 3 9

14
Answers
  • r 13
  • g 4
  • p - 22
  • b - 17
  • v 13
  • w - 2/3

15
Homework
  • Finish one step equation riddle worksheets
  • (Pizzazz pages 28, 30, 31, 33)
  • You MUST show your work to get credit on this
    assignment!!!

16
  • Worktext page 22
  • Worktext page 28
  • 23,29
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