# NCERT Solutions for Class 9 Maths Chapter 4 Linear equations in Two Variables The chapter deals with the core concept of linear equations, how they are obtained, and solving linear equations. A linear equation is correct only if the result obtained leads to a straight line in the graph. There are linear equations with two variables as well, which are explained with examples and illustrations about the graph. Two ways can be used to express linear equations: the algebraic way and the other is the graphical representation. Equations that are parallel to both the x and y-axis are stated with the equations. The chapter also discusses the difference between linear and non-linear equations. In the end, the chapter emphasizes the point that equations solved under the axis represent in the graph.

• The chapter introduces the students how linear equations can be solved to represent it in the graph.
• Letters a,b,c are used to solve the linear equations with two variables where the value of both "a" and "b isn't zero.
• The solutions of linear equations with one variable remain unique at all times.
• In linear equations with two variables, three methods are used, but the graphing method has been described in this chapter.
• The end solutions obtained after solving linear equations with two variables are always different and not the same at once.
• Graphs have been used to illustrate two variables' positioning through points and other numbers at both axes at the end of the chapter.

 Also See NCERT Solutions For Class 9 Maths Chapter 1 Number System NCERT Solutions For Class 9 Maths Chapter 2 Polynomials NCERT Solutions For Class 9 Maths Chapter 3 Coordinate Geometry NCERT Solutions For Class 9 Maths Chapter 5 Introduction to Euclid’s Theory NCERT Solutions For Class 9 Maths Chapter 6 Lines and Angles NCERT Solutions For Class 9 Maths Chapter 7 Triangles NCERT Solutions For Class 9 Maths Chapter 8 Quadrilaterals NCERT Solutions For Class 9 Maths Chapter 9 The Areas of Parallelograms and Triangles NCERT Solutions For Class 9 Maths Chapter 10 Circles NCERT Solutions For Class 9 Maths Chapter 11 Constructions NCERT Solutions For Class 9 Maths Chapter 12 Heron’s Formula NCERT Solutions For Class 9 Maths Chapter 13 Surface Areas and Volumes NCERT Solutions For Class 9 Maths Chapter 14 Statistics NCERT Solutions For Class 9 Maths Chapter 15 Probability

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