Chapter 3 Class 10 Pair of Linear Equations in Two Variables

Get NCERT solutions of Chapter 3 Class 10 - Pair of Linear Equations in Two Variables at Teachoo. Answers to all exercise questions, examples and optional questions have been provided with video of each and every question

 

We studied Linear Equations in Two Variables in Class 9, we will study pair of linear equations in this chapter.

In this chapter, we will learn

  • What are Linear Equations in Two Variables
  • Converting statements into Equations, and drawing graph of those linear equations
  • Possible Type of Graphs for Pair of Linear Equations in Two Variables - Two Lines Intersecting, Two lines Parallel, Coincident Lines
  • Finding solution of equations from graphs
  • Consistency of equations  by finding ratio of a1/a2, b1/b2, c1/c2
  • and checking whether lines are 
    • Intersecting Lines (Exactly one solution - unique)
    • Coincident Lines (Infinitely many solutions)
    • Parallel Lines (No solutions)
  • Solving Pair of Linear Equations by 
    • Substitution Method
    • Elimination Method
    • Cross Multiplication Method
  • Solving complicated equations like 2/x + 3/y = 4 by substituting variables (like putting p = 1/x, q = 1/y and solving)
  • Solving Statement Questions by first forming equations, and then solving

 

Click on exercise or topic link below to start doing the chapter

 

Note: When you click on a link, the first question will open. To open any other question of the exercise, go to the bottom of the page. There is a list with arrows having all the questions (with important questions also marked)