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Question
Solve the matrix equation `[(2, 1),(5, 0)] -3"X" = [(-7, 4),(2, 6)]`
Solution
`[(2, 1),(5, 0)] -3"X" = [(-7, 4),(2, 6)]`
`[(2, 1),(5, 0)] - [(-7, 4),(2, 6)]` = 3X
∴ X = `(1)/(3)[(9, -3),(3, -6)]`
= `[(3, -1),(1, -2)]`.
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