Ex 4.2, 3 - Chapter 4 Class 9 Linear Equations in Two Variables - Part 4

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  1. Chapter 4 Class 9 Linear Equations in Two Variables (Term 1)
  2. Serial order wise

Transcript

Ex 4.2, 3 Equation : x − 2y = 4 and which are not: (iv) ( ﷮2﷯ , 4 ﷮2﷯) ( ﷮2﷯ , 4 ﷮2﷯) Putting x = ﷮2﷯ and y = 4 ﷮2﷯ in L.H.S L.H.S : = ﷮2﷯ − 2 (4 ﷮2﷯) = ﷮2﷯ − 8 ﷮2﷯ = −7 ﷮2﷯ ≠ 4 ∴ Hence, L.H.S ≠ R.H.S ∴ Not a solution.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.