__CHAPTER 2 LINE EQUATIONS IN ONE VARIABLE__Line ear expressions in one variable are called line equations in one variable.

An algebraic equation involves variables such that the value of the expression on one side of the equality sign is equal to the value of the expression on the other side.

To solve linear equations, variables can be transposed from one side of the equation to the other.

Sometimes the expressions have to be simplified before we can solve them. Some equations which are not in linear form can be multiplied by a suitable expression and converted into a linear equation.

Linear equations have a diverse range of applications:

- Problems on numbers
- Ages
- Perimeters
- Combination of currency notes, etc.