# Forming and solving equations from descriptions

In this lesson, we will form linear equations from worded descriptions, and then solve them.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Which equation can be formed from the diagram?

1/4

Q2.Work out the value of c.

2/4

Q3.Which equation can be formed from the diagram?

3/4

Q4.What is the size of the largest angle?

4/4

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.Which equation can be formed from the diagram?

1/4

Q2.Work out the value of c.

2/4

Q3.Which equation can be formed from the diagram?

3/4

Q4.What is the size of the largest angle?

4/4

# 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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Forming and solving equations from descriptions

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

Q1.I think of a number. I times it by 5 and subtract 3. The answer is 17. Form an equation to show this.

1/5

Q2.What number was I thinking of in Question 1?

2/5

Q3.Zaki thinks of a number. He multiplies the number by 5. He then adds 3. His answer is 38. What number did Zaki think of?

3/5

Q4.Yasmin thinks of a number. She multiplies it by 2. She then subtracts 15. She then divides the result by 4. Her answer is 2.5. What number did Yasmin think of?

4/5

Q5.2 bottles and 2 corks cost £4.20. A bottle is £0.80 more expensive than a cork. How much does a bottle cost?

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Forming and solving equations from descriptions

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

Q1.I think of a number. I times it by 5 and subtract 3. The answer is 17. Form an equation to show this.

1/5

Q2.What number was I thinking of in Question 1?

2/5

Q3.Zaki thinks of a number. He multiplies the number by 5. He then adds 3. His answer is 38. What number did Zaki think of?

3/5

Q4.Yasmin thinks of a number. She multiplies it by 2. She then subtracts 15. She then divides the result by 4. Her answer is 2.5. What number did Yasmin think of?

4/5

Q5.2 bottles and 2 corks cost £4.20. A bottle is £0.80 more expensive than a cork. How much does a bottle cost?

5/5

# Lesson summary: Forming and solving equations from descriptions

## Time to move!

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

For 5 mins...

Move around:
Walk

On the spot:
Chair yoga