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Question
Given `A = [(2, -3)], B = [(0, 2)]` and `C = [(-1, 4)]`; find the matrix X in the following:
A – X = B + C
Solution
A – X = B + C
`[(2, -3)] - "X" = [(0, 2)] + [(-1, 4)]`
`[(2, -3)] - "X" = [(0 - 1, 2 + 4)]`
`[(2, -3)] - "X" = [(-1, 6)]`
`[(2, -3)] - [(-1, 6)] = "X"`
`"X" = [(2 + 1, -3 - 6)] = [(3, -9)]`
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