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Chapter 4 Class 9 Linear Equations in Two Variables

Serial order wise

Last updated at Jan. 31, 2022 by Teachoo

Ex 4.2, 4 Find the value of k, if x = 2, y = 1 is a solution of the equation 2π₯+3π¦=πGiven ππ+ππ=π Since, π₯=2 and π¦=1 is a solution so it will satisfy its equation Putting π₯=2 and π¦=1 in (1) 2(π)+3(π)=π 4+3=π 7=π β΄ π=π β¦(1)