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

Choose correct alternative.

(A) 5 (B) 1 (C) −5 (D) −1

Doubtly Asked 24 Oct 2026 Save WhatsApp Report

1 answer

Answer: (C) −5

Write the equations as \(x + y = 3\) and \(3x - 2y = 4\).

\[D = \begin{vmatrix} 1 & 1 \\ 3 & -2 \end{vmatrix} = -2 - 3 = -5\]

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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