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Question
Find x and y, if
`{ 3[(1, 2, 0), (0, -1, 3)] - [(1, 5, -2), (-3, -4, 4)]}[(1), (2), (1)] = [(x), (y)]`
Sum
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Solution
`{ 3[(1, 2, 0), (0, -1, 3)] - [(1, 5, -2), (-3, -4, 4)]}[(1), (2), (1)] = [(x), (y)]`
`[(2, 1, 2), (3, 1, 5)] [(1), (2), (1)] = [(x), (y)]`
`[(6), (10)] = [(x), (y)]`
∴ x = 6 and y = 10
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