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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