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6.1 Linear Equations in One Variable
LEARNING
STANDARDS
What are linear equations in one variable? Identify linear
equations in one
variable and describe
the characteristics of
the equations.

Diagram (a) Diagram (b)
Note that the amount of money in Diagram (a) is equal to id ou now
the amount of money in Diagram (b). This situation can be
The symbol ‘≠’ is
written as:
used for relationship
Amount of money Amount of money that consists of
=
in Diagram (a) in Diagram (b) different values.
For example, 2 ≠ 5
The symbol ‘=’ is used to show the relationship between
two quantities that have the same value. The mathematical
CHAPTER
6 sentence that involves equality is known as equation.

For example, x + 2 = 5 and y – 7 = 11

1 Individual

Aim: To identify algebraic expressions and equations.
1. Observe the mathematical sentences written on the cards in the diagram below.
y
7h + 2 x + 5 = 8 – 10 = 1 k + 1 = 6 6p + 4q = 9
2
2
2y
x – = 7 3n + 1 = 6n 5a – 4 3h – 1 = 5k x + 2x
3
3
2. Classify the mathematical sentences into expressions and equations. Copy and
complete the circle map below.

Expression Equation

3. Compare your answers with those of your friends.

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Chapter 6

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