• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Solving Two Step Equations Using Opposites
 

Solving Two Step Equations Using Opposites

on

  • 1,725 views

This presentation shows how to solve two step linear equations using Opposite Operations and Reversing their order. ...

This presentation shows how to solve two step linear equations using Opposite Operations and Reversing their order.

To obtain a PowerPoint format download of this presentation, go to the following page:

http://passyworldofmathematics.com/pwerpoints/

Statistics

Views

Total Views
1,725
Views on SlideShare
1,681
Embed Views
44

Actions

Likes
0
Downloads
7
Comments
0

1 Embed 44

http://mrrodriguez.webs.com 44

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Solving Two Step Equations Using Opposites Solving Two Step Equations Using Opposites Presentation Transcript

    • Image Source: http://www.esquire.com
    • Step 1 - Work out the operations on the variable letterStep 2 - Put operations into BODMAS or PEMDAS orderStep 3 - Work out what the Opposite Operations areStep 4- Put Opposites into SAMDOB or SADMEP orderStep 5- Apply Opposites one by one to the equationStep 6 - Simplify the final answer
    • There is a set order we must do Math Ops in:Brackets ( ) ParenthesisOther Things X2 ExponentsDivision / or MultiplicationMultiplication X or DivisionAddition + AdditionSubtraction Subtraction
    • The Opposite operations we use for solving Equations are these ones.
    • 2N + 5 = 111) Operations: + 5 and x 22) BODMAS or PEMDAS is x 2 then + 53) Opposite Operations are / 2 and – 54) SAMDOB or SADMEP order is -5 then /25) Apply Opposites one by one to both sides of the equation. (Shown on the next slide).
    • From Step 4) SAMDOB or SADMEP order is - 5 then /2 2N + 5 = 11 -5 -5 2N = 6 2N = 6 2 2 N =3
    • 2N + 5 = 11 Using Reversing Steps our answer was N = 3Substitute N = 3 into the original equation andcheck that it works. 2N + 5 = 11 (Sub N = 3) 2 x 3 + 5 = 11 6 + 5 = 11 11 = 11Left Side = Right Side N = 3 must be correct.
    • Fill in the missing blanks in the steps below 3k - 2 = 101) Operations: - __ and x ___2) BODMAS or PEMDAS is x ___ then - ___3) Opposite Operations are / ___ and + ___4) SAMDOB or SADMEP order is + 2 then / 35) Apply Opposites one by one to both sides of the equation. (Shown on the next slide).
    • From Step 4) SAMDOB or SADMEP order is + 2 then /3 3k - 2 = 10 +2 +2 3k = 12 3k = 12 3 3 k =4
    • Fill in the missing blanks in the steps below n/5 + 2 = 61) Operations: __ __ and __ ___2) BODMAS or PEMDAS is __ ___ then __ ___3) Opposite Operations are x ___ and - ___4) SAMDOB or SADMEP order is - 2 then x 55) Apply Opposites one by one to both sides of the equation. (Shown on the next slide).
    • From Step 4) SAMDOB or SADMEP order is - 2 then x 5 n/5 + 2 = 6 -2 -2 n/5 = 4 (Now multiply by 5) nx5 = 4x5 5 n = 20
    • Fill in the missing blanks in the steps below 2(a-3) = 81) Operations: ( - __ ) and x ___2) BODMAS or PEMDAS is (- ___) then x ___3) Opposite Operations are (+ ___) and / ___4) SAMDOB or SADMEP order is /2 then (+ 3)5) Apply Opposites one by one to both sides of the equation. (Shown on the next slide).
    • From Step 4) SAMDOB or SADMEP order is / 2 then (+3) 2(a-3) = 8 ( First divide by 2) 2(a-3) = 8 2 2 (a-3) = 4 (Now add 3 both sides) (a-3 + 3) = 4 + 3 a =7
    • http://passyworldofmathematics.com/