Adding and Subtracting Linear Expressions
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Subject Area: Mathematics (B.E.S.T.) | Grade Level: 7
Lesson Length: 1 hour
Keywords/Tags: Adding, Subtracting, Linear Expressions, Coefficients
Lesson Description: In this lesson, students will be learning how to add, subtract, factor, and expand linear expressions with rational coefficients. There is a video lesson explaining how to solve linear expressions by adding and subtracting. After watching the video the students should take the 10 question quiz. After the quiz the student will need to look in the resources portion of the lesson. There are 3 resources that the students can look at to help them master the content of the lesson.

  • MA.7.AR.1.1 Apply properties of operations to add and subtract linear expressions with rational coefficients.
  • MA.7.NSO.2.2 Add, subtract, multiply and divide rational numbers with procedural fluency.
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Video : Adding and Subtracting Linear Expressions
Instructions: Please watch the following video as many times as needed before starting to go through other lesson pages. Understanding the content of the video is very important since the lesson activities will be all about this video content.
Description: In this video students will learn how to add or subtract linear equations. The video will show how to use the distributive property before you can start to combine like terms.
Quiz : Adding and Subtracting Linear Expressions Quiz
Instructions: Once you have watched the video lesson, please continue to the 10 question quiz. Please do your best to answer all 10 questions correctly. If anyone score lower than 70% then they can go back an correct the ones they missed for partial credit. Once you have completed your test there are activities in the resource portion of the lesson that you can participate in.
Question #1

1. (2x - 5) + (3x - 4)

Question #2

2. (5x - 7) + (2x -11)

 

Question #3

3. (4x +1) - (7x - 2)  

 

Question #4
4. The solution for (8x + 3) - (10x +7) is 2x + 4, true of false 
Question #5
5. The solution for (-3x - 4) + (-5x – 8) is -8x – 12, true or false 
Question #6

6. (-6x + 3) - (-4x + 5)

 

 

Question #7

7. (-2x + 15) + (7x - 8)

 

Question #8

8. (-x + 14) - (-2x +4)

 

Question #9
9. Solve the expression   2(-4x + 10) + (12x - 5)
Question #10
10. Solve the expression  (13x + 7) - 2(5x - 3)
Description: The quiz will cover adding and subtracting linear expressions which was cover in the video lesson. The question broken down into multiple choice, true/false, and asking for you to solve the expression.
Resources : Adding and Subtracting Linear Expressions Resources
Instructions: After the quiz student will need to look through the resources. Doing this will help the them master the content of the lesson.
Adding & Subtracting Linear Expression Video
This link will take to you a short 5 minute video on adding and subtracting linear expressions. This video is here for anyone who feels they need more instruction on adding and subtracting linear expressions. If any of your questions are not answered in the video please feel free to email those questions.
Horizontal Method and Vertical Method of Solving Linear Expressions
When you click on the link, a webpage will show 2 methods step by step of how to solve linear expressions using adding and subtracting. These is also a video attached at the bottom of the webpage when you click on the link.
IXL adding and subtracting linear expressions
This link will open up to IXL, so you can practice adding and subtracting linear expressions. Your score will go up and down depending on if you get the question right or wrong. Work towards getting to 70% or better. If you get to 70% or better screen shot your score and email it to me. Your name will be put into a drawing for a prize.
Description: The are three resources below. First the students will watch quick 5 minute refresher video on adding and subtracting linear expressions. Next they will review the webpage with a 2 different methods of solving linear expressions (Horizontal and Vertical). There is a video attached to the bottom of the webpage. Finally the student will work on IXL practice on adding and subtracting linear expressions. Student can screen shot their score and email it me, so there name can be put into a drawing for a prize. Student must get 70% or better on the practice for their name to go in the drawing.