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Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k. - Mathematics

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Find the value of k, if x = 2, y = 1 is a solution of the equation 2x + 3y = k.

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Solution

Putting x = 2 and y = 1 in the given equation,

2+ 3y = k

⇒ 2(2) + 3(1) = k

⇒ 4 + 3 = k

⇒ k = 7

Therefore, the value of k is 7.

Concept: Solution of a Linear Equation
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APPEARS IN

NCERT Class 9 Maths
Chapter 4 Linear Equations in two Variables
Exercise 4.2 | Q 4 | Page 70

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