Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9th
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Find the value of m from the equation 2x + 3y = m. If its one solution is x = 2 and y = −2 - Mathematics

MCQ

Find the value of m from the equation 2x + 3y = m. If its one solution is x = 2 and y = −2

Options

  • 2

  • − 2

  • 10

  • 0

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Solution

– 2

Explanation;

Hint:

The equation is 2x + 3y = m

Substitute x – 2 and y = – 2 we get

2(2) + 3(– 2) = m

⇒ 4 – 6 = m

⇒ – 2 = m

Concept: Methods of Solving Simultaneous Linear Equations by Substitution
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APPEARS IN

Samacheer Kalvi Mathematics Class 9th Tamil Nadu State Board
Chapter 3 Algebra
Exercise 3.15 | Q 18 | Page 135
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