Solving One-Step Equations by Adding or Subtracting** NEW

What would he have to do to balance this equation?

SELECT ALL THAT APPLY.

• Take the cookie away from the right side. 

• Add another cookie to the right side. 

• Add another person to the left side. 

• Add a cookie to the left side. 

You are allowed to do ANYTHING you want to an equation, as long as you...

• Do the same thing on both sides. 

• Add to the left side and subtract from the right side. 

What is the next step in solving this equation? 

• Add 7 back to both sides. 

• Subtract 7 from the right side. 

• Subtract x from 15. 

Copy and solve this problem in your math notebook. What did you get? 

• x=15

• x=65

• x=25

• x=1

How do you "undo" subtraction? 

• Addition

• Multiplication

• Division

Copy and solve this equation in your math notebook. What did you get?

• x=5

• x=7

• x=12

• x=17

Copy and complete both problems below in your math notebook.

1. x + 2 = 20

2. x - 2 = 20

Did you follow along and record the notes and problems in your math notebook that you were instructed to record?

• No, sorry. I'll go back and do that now.

• Yes! I followed all the directions and created good quality notes!