Class 9 Maths Chapter 4 Linear Equations in Two Variables

NCERT Solutions for Class 9 Maths Chapter 4 Linear Equations in Two Variables

Find NCERT Solutions for Class 9 Maths Chapter 4 Linear Equations in Two Variables all the questions asked in Chapter 4 Linear Equations in Two Variables are solved with a detailed explanation of all steps mentioned in each solution. To excel in class 9 Maths Chapter 4 Linear Equations in Two Variables read the chapter theory before moving on to solve the questions given in the NCERT textbook for Chapter 4 Linear Equations in Two Variables. 

Topics covered in NCERT Solutions for Class 9 Maths Chapter 4 Linear Equations in Two Variables.

Many times in mathematics, we have to find the value of an unknown. In this case, we represent the unknown by using some letters like p, q, r, x, y etc. These letters are then called the variable representations of the unknown quantity In earlier classes, you have studied linear equations in one variable. You know that standard form of a linear equation in one b variable is ax + b = 0, (a + 0). Its solution x=-b/a is unique. In this chapter, you will study the linear equation in two variables like 5x-y+ 7/2=0,x-2y+1=0, etc. A polynomial equation having two unknowns of degree one is called the 2 linear equation in two variables. You will see that a linear equation in two variables, has infinitely many solutions. You will also study, how to draw the graph of a linear equation in two variables on a graph paper.

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