To solve three equations using inverse matrix method, first write them as \( AX = B \). Find the inverse using \( A^{-1} = \frac{\text{adj}(A)}{|A|} \), where adjoint is the transpose of the cofactor matrix. Then solution is \( X = A^{-1}B \). But honestly, I keep confusing the adjoint with transpose—last time during mock exams, Didi scolded me because I mixed them up while practicing with tea stains on my notebook.
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