MathematicsMatrices and determinantsJAMB
Solve [[1, 1], [1, −1]] × [[x], [y]] = [[5], [1]].
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Answer: B. x = 3, y = 2
x + y = 5 and x − y = 1 give x = 3, y = 2.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.