# Example 10 - Chapter 3 Class 10 Pair of Linear Equations in Two Variables

Last updated at June 29, 2018 by Teachoo

Last updated at June 29, 2018 by Teachoo

Transcript

Example 10 Let us consider the Example 3 of Section 3.2. Will the rails cross each other? The pair of linear equation formed were x + 2y – 4 = 0 2x + 4y – 12 = 0 From (1) x + 2y – 4 = 0 x = 4 – 2y Substitute the value of x in equation (2) 2x + 4y – 12 = 0 2 (4 – 2y) + 4y – 12 = 0 8 – 4y + 4y – 12 = 0 8 – 4y + 4y – 12 = 0 −4 = 0 Which is not correct Equation do not have a common solution . So , the two rails will not cross each other.

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.