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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