In this video we will learn about the basics of Linear Equations in two variables.

Some important points to revise from the chapter are: • An equation of the form ax + by + c = 0, where a, b and c are real numbers, such that a and b are not both zero, is called a linear equation in ...

Linear functions are used to model a broad range of real-world problems. The ability to solve linear equations and inequalities is an essential skill for analysing these models. This section covers ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Economists are interested in examining types of relationships. For example an economist may look at the amount of money a person earns and the amount that person chooses to spend. This is a ...

Sometimes in mathematics we like to use letters to represent numbers. The ‘value’ of these letters can change according to certain rules or conditions we are given – hence we can call them variables.

What is a linear equation? Linear equations are frequently used to compute rates such as speed, time and distance problems. As a standard form of a linear equation in one-variable, this rule has the ...