If \(\begin{vmatrix}-x & 12 \\-1 & 4 \end{vmatrix} = - 12\), find x
MATHEMATICS
JAMB 2014
If \(\begin{vmatrix}-x & 12 \\-1 & 4 \end{vmatrix} = - 12\), find x
- A. -6
- B. -2
- C. 3
- D. 6
Correct Answer: D. 6
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