# Equivalent equations

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## Lesson details

### Key learning points

- In this lesson, we will explore equations and develop our ability to be able to idenitfy equivalent equations in a list.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

What is the purpose of solving an equation?

To expand any brackets.

To get rid of any fractions.

To make everything a whole number.

Q2.

Which of the following can be values when solving equations?

Decimals

Fractions

Integers

Q3.

What is the value of x for x - 4 = 3x + 2?

-1

-2

2

Q4.

What number am I thinking of, if half of the sum of my number and 4 is the same as 3 lots of my number subtracted by 2?

1

1.2

2

Q5.

The perimeters of the rectangle and triangle are the sane. What is their perimeter?

0

10

2

### 5 Questions

Q1.

What must an equation have?

An x

Integers

Numbers

Q2.

Which equation is equivalent to 3x - 2 = 4?

3x - 1 = 2

6x - 2 = 4

x - 1 = 1

Q3.

Which equation is equivalent to 4x - 2 = 8?

2x - 1 = 2

4x - 3 = 10

x - 1 = 2

Q4.

Which equation is equivalent to 3x - 2.5 = 5?

2x - 1.5 = 4.5

6x - 4 = 10

6x - 6 = 10

Q5.

If 9 - 2x = 4, what is 7 - 2x?

3

4

6