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**Choose correct alternative for the following question.**

To solve x + y = 3; 3x – 2y – 4 = 0 by determinant method find D.

#### Options

5

1

−5

−1

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#### Solution

x + y = 3

3x – 2y – 4 = 0

∴ 3x – 2y = 4

`"D" = |(1, 1), (3, -2)| = 1 × (-2) – 1 × 3 = – 2 – 3 = – 5`

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