Pair of Linear Equations in Two Variables Class 10 Maths, deals with various concepts which are as under:-
- Pair of Linear Equations in Two Variables
- Graphical Method of Solution of a Pair of Linear Equations
- Algebraic Methods of Solving a Pair of Linear Equations
Substitution Method
Elimination Method
Cross-Multiplication Method - Equations Reducible to a Pair of Linear Equations in Two Variables
1. Linear Equations in two Variable
Equation having two variables i.e. x and y and where the maximum power of both the variable is 1 are called linear equation in two variables.
Solution of a Linear Equation in two variables
When are pair of lines intersecting, coincident or parallel
For two lines: x+
y+
=0 and
x+
y+
=0
Lines will be intersecting if ≠
Lines will be coincident if: =
=
Lines will be parallel if: =
≠
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