NAGALAND Class 10 Maths Pair of Linear Equations in 2 Variables
Graphical Solution to Linear Equations
Understand the concept of linear equations in two variables. Use graphical method to determine the solution of the word problems.Substitution Method
Substitution method for linear equation in two variables reduces a linear equation to one variable that can be solved easily to get the value of the variable. The other variable can be calculated using the value of variable obtained.
In Substitution method, the value of one variable in terms of another variable should be used to solve the equation.Elimination Method
For system of linear equations in two variables we eliminate one variable first to get a linear equation in one variable and then use substitution method to get the value of other variable.
In elimination method, the co-efficient of x or y are to multiplied or divided by a number to make them equal so that one of them eliminates and we can find the value of other.Cross Multiplication Method
Discussion of the cross multiplication method to solve a pair of linear equations. Apply the same to solve word problems.Equations Reducible to Linear Form
Discussion of the method to solve the pair of linear equations that is reducible to standard form of linear equations by making some substitutions.
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