# CBSE Class 9 Answered

**what is linear equations**

Asked by guntursowmya57 | 16 Mar, 2021, 07:39: PM

Expert Answer

An equation gives a straight line when plotted on a graph is called as a Linear Equation.

In Linear equations the exponent/power on the variable is always 1.

In Linear equations the exponent/power on the variable is always 1.

1. Linear Equation in one variable: An equation of the form ax + b = 0, where a, b are real numbers and x is a varible is called a Linear Equation in one variable.

Examples: 2x + 3 = 0, y = 1, 4y - 8 = 0 etc

Examples: 2x + 3 = 0, y = 1, 4y - 8 = 0 etc

2. Linear Equation in two variables:

An equation of the form ax + by + c = 0, where a, b and c are real numbers, x and y are the variables is called a Linear Equation in two variable.

Examples: 2x + 3y + 1 = 0, y + z = 1 etc

An equation of the form ax + by + c = 0, where a, b and c are real numbers, x and y are the variables is called a Linear Equation in two variable.

Examples: 2x + 3y + 1 = 0, y + z = 1 etc

Answered by Renu Varma | 16 Mar, 2021, 11:20: PM

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