# Manipulating equations and inequalities

In this lesson, we will continue to investigate the relationships between inequalities and equations. We determine truth statements based upon a given inequality.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Given that x > y, is the following inequality always, sometimes or never true? x + 2 > y + 2

1/3

Q2.Given that x > y, is the following inequality always, sometimes or never true? y > x + 5

2/3

Q3.Given that x > y, is the following inequality always, sometimes or never true? 2x > y + 4

3/3

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Given that x > y, is the following inequality always, sometimes or never true? x + 2 > y + 2

1/3

Q2.Given that x > y, is the following inequality always, sometimes or never true? y > x + 5

2/3

Q3.Given that x > y, is the following inequality always, sometimes or never true? 2x > y + 4

3/3

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Manipulating equations and inequalities

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Solve the equation 2x - 11 = 21

1/4

Q2.Solve the inequality 2x - 11 ≤ 21

2/4

Q3.If 2x - 11 = 21, which of the following is also true? Select one.

3/4

Q4.If a + b = 10 , which of the following is also always true? Select one.

4/4

Quiz:

# Manipulating equations and inequalities

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Solve the equation 2x - 11 = 21

1/4

Q2.Solve the inequality 2x - 11 ≤ 21

2/4

Q3.If 2x - 11 = 21, which of the following is also true? Select one.

3/4

Q4.If a + b = 10 , which of the following is also always true? Select one.

4/4

# Lesson summary: Manipulating equations and inequalities

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga