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Find the Value of M, If X = 2, Y = 1 is a Solution of the Equation 2x + 3y = M. - Mathematics

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Question

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

Sum

Solution

Let x = 2 and y = 1 be a solution of the equation.
2x + 3y = m
⇒ 2(2) + 3(1) = m
⇒ 4 + 3 = m
⇒ m = 7
∴ If x = 2 and y = 1 is the solution of the equation
2x + 3y = m then the value of m is 7.

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Methods of Solving Simultaneous Linear Equations by Elimination Method - Method of Elimination by Equating Coefficients
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Chapter 6: Simultaneous (Linear) Equations (Including Problems) - Exercise 6 (B) [Page 81]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 6 Simultaneous (Linear) Equations (Including Problems)
Exercise 6 (B) | Q 14 | Page 81
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