### Linear Equations : Maths NCERT / CBSE Notes

- We know that
**Arithmetic expressions**are**mathematical expressions**that are made up of numbers. **Algebraic expressions**are made up of**variables**and numbers.**Algebraic expressions**with degree one are called**linear expressions**.- All
**expressions**that have degree greater than one are not**linear**. - An
**equation**can be defined as a mathematical statement that uses symbols to express equality between**mathematical expressions**. - The
**expression**on the left of the equality sign is the ‘LHS’ of the equation, while that on the right is its ‘RHS. - The value for which the
LHS and RHS of an equation is called the
**Solution of the equation**. - An
**algebraic equation**can be solved by performing mathematical operations and to both sides of the**equation**or by transposing a number to the other side and performing the opposite operation on the number so transposed. - A
**linear equation**may have a rational number as its solution.

**Application of Linear Equations**

- A
**linear equation**in one**variable**may have**variables**on both sides of the**equation**. - While
**solving the linear equations**Numbers and**Variables**can be transposed from one side of an**equation**to the other side of the**equation**. - Using
**Linear Equations**we can solve**word problems** - For
**solving a Non-Linear Equation**we have to reduce the**Non Linear Equation**into a**linear Equation.**

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