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If [(x-y, 2y)(2y+x, x+y)] = [(1, 4)(9, 5)], write the value of x + y + z.

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If [(x-y, 2y)(2y+x, x+y)] = [(1, 4)(9, 5)], write the value of x + y + z.

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x+y+z = 10

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