Join Karin Hutchinson for an indepth discussion in this video Solving addition equations using decimals, part of Learning Algebra: Solving Equations.
 A last example for Solving Addition Equations is…going to involve an equation that contains decimals.…Our last addition example is negative 5.5…plus c equals 10.…This example is a little tricky…because we're going to be working with decimals.…And notice that the left hand side…of the equation is written backwards.…The variable does not come first in this equation…but our goal remains the same.…We need to make sure that we get c by itself…on the left hand side of the equation.…
So in order to get c by itself, we need to think…about how we're going to get rid of negative 5.5.…Since 5.5 is negative, the opposite is positive.…So if I add 5.5…to both sides of the equation,…I should be able to isolate my variable.…So I'm going to go ahead and write in plus 5.5…on the left hand side.…So we have negative 5.5 plus 5.5…plus c equals 10.…
And don't forget whatever you do to one side,…you must do to the other side.…So I'm going to add 5.5 to the right hand side…because I added it to the left hand side.…Now we have negative 5.5 plus 5.5.…
Author
Karin HutchinsonReleased
10/19/2015 Isolating variables
 Keeping equations balanced
 Solving addition and subtraction equations
 Solving multiplication and division equations
 Solving equations that involve the distributive property
 Solving twostep and multistep equations
 Solving equations with decimals and fractions
 Solving equations with variables on both sides
 Understanding literal equations
 Solving absolute value equations
Skill Level Intermediate
Duration
Views
Related Courses

Office for Students
with Aaron Quigley1h 14m Intermediate 
Google Apps for Students
with Aaron Quigley1h 13m Beginner 
Learning Algebra: PreAlgebra
with Karin Hutchinson2h 39m Intermediate 
Test Prep: SAT
with Vince Kotchian1h 39m Intermediate

Introduction

Welcome1m


1. Introduction to Solving Equations

Keeping equations balanced1m 30s

2. Addition Equations

3. Subtraction Equations

4. Multiplication Equations

5. Division Equations

6. TwoStep Equations

Solving a twostep equation1m 56s

7. Solving Multistep Equations with the Distributive Property

8. Solving Equations with Decimals

9. Solving Equations with Fractions

10. Solving Literal Equations

11. Equations with Variables on Both Sides

12. Solving Multistep Equations

13. Solving Absolute Value Equations

Conclusion

Next steps37s

 Mark as unwatched
 Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.
CancelTake notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.
Share this video
Embed this video
Video: Solving addition equations using decimals