INTRODUCTION:

INTRODUCTION:

• For any linear equation, each solution (x, y) corresponds to a point on the line.
  General form is given by ax + by + c = 0. where a,b  and c are real numbers  (a,b ≠ 0)  is  called a linear equation in two variables  x  and  y.
• A pair of linear equations in two variables can be represented and solved, by
  (i) Graphical method
  (ii) Algebraic method

• Algebraic Methods: The following methods are used for finding the solution (s) of a pair of  linear equations:

  1. 1. Substitution  Method
     2. Elimination    Method
     3. Cross – multiplication   Method
• General form of a linear pair of equations in two variables is
• The graph of a linear equation is a straight line.
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