# Solving a simultaneous equation algebraically

In this lesson, we will learn to solve simultaneous equations algebraically. We will interpret pictorial representations of equations and write them as simultaneous algebraic equations.

#### 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.If x=2 and y=3, what is the value of 2x+3y?

1/5

Q2.Is x=3 the solution to 2x+7=13?

2/5

Q3.Use substitution to decide which of the following are solutions to x+y=3.

3/5

Q4.Use substitution to decide which of the following is the solution to x+y=3 and 3x+4y=10.

4/5

Q5.Use substitution to decide which of the following is the solution to x+y=3 and 5y+3x=15.

5/5

#### 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.If x=2 and y=3, what is the value of 2x+3y?

1/5

Q2.Is x=3 the solution to 2x+7=13?

2/5

Q3.Use substitution to decide which of the following are solutions to x+y=3.

3/5

Q4.Use substitution to decide which of the following is the solution to x+y=3 and 3x+4y=10.

4/5

Q5.Use substitution to decide which of the following is the solution to x+y=3 and 5y+3x=15.

5/5

# 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:

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# 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:

# Solving simultaneous equations algebraically

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

Q1.If x=3 and 2x+5y=41, what is the value of y?

1/5

Q2.7x+2y=24 AND 4x+2y=18. Find the value of 3x

2/5

Q3.7x+2y=24 AND 4x + 2y = 18. Find the value of y

3/5

Q4.9x +6y=168 AND 9x +4y=160. Solve

4/5

Q5.4x +8y=116 AND 4x +4y=68. Solve

5/5

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

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

# Solving simultaneous equations algebraically

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

Q1.If x=3 and 2x+5y=41, what is the value of y?

1/5

Q2.7x+2y=24 AND 4x+2y=18. Find the value of 3x

2/5

Q3.7x+2y=24 AND 4x + 2y = 18. Find the value of y

3/5

Q4.9x +6y=168 AND 9x +4y=160. Solve

4/5

Q5.4x +8y=116 AND 4x +4y=68. Solve

5/5

# Lesson summary: Solving a simultaneous equation algebraically

## 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