In this exercise the students learn online and also can download PDF of class 9 maths solution in English medium in free of cost. Here we provide detailed solution of each of the question in English.This solution is helpful for CBSE and UP board’s students.This solution is equally useful for other state board’s students, which followed NCERT text books.
A linear equation in one variable i.e. 2x+ 1= 0, 3y-1= 0 etc. are linear equation in one variable. You know that every linear equation in one variable has a unique solution.But a linear equation in two variables has infinite many solutions. let us consider an example 2x+3y = 12 is a linear equation in two variables.
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