These comprehensive RBSE Class 8 Maths Notes Chapter 2 Linear Equations in One Variable will give a brief overview of all the concepts.

→ An equation is a statement of equality of two algebric expressions involving constants and variables. Ex. 3x + 4 = 5 Here x is a variable and 3, 4 and 5 are constant.

→ Any value of the variable which makes the equation a true statement is called the solution or root of the equation.

→ An equation, in which the maximum power of variable in one, is called a linear equation. Ex. 4x + 3 = 4, 3x + 2y = 9 etc.

→ A linear equation having only one variable is called linear equation in one variable. Ex. 3x = 2, 2x + 5 = 9 etc.

→ Without changing the equality, we may

- add /subtract same number to/from both sides of the equation;
- multiply/divide both sides of the equation by a same non-zero number.

→ Transposing means taking a tenn from one side of an equation to the other side with its sign changed.

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