Ex 4.2, 3 Check which of the following are solutions of the equation 𝑥−2𝑦=4 and which are not: (v) (1, 1) Given equation 𝑥−2𝑦=4 Putting x = 1 and y = 1 in LHS 𝒙−𝟐𝒚 =1−2(1) =−𝟏 ≠4 Since, LHS ≠ RHS Hence, (1, 1) is not a solution

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.