While solving simultaneous equations by Cramer's rule, if \(D_x = 24\) and \(x = -3\), then \(D = \)
A. \(8\)
B. \(-72\)
C. \(-8\)
D. \(72\)
1 answer
Best answer
Answer: C. \(-8\)
\(x = \frac{D_x}{D} \Rightarrow D = \frac{D_x}{x} = \frac{24}{-3} = -8\).
Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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