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Determine the matrices A and B where A ...

Determine the matrices A and B where A + 2B = `[(1, 2, 0), (6, -3, 3), (-5, 3, 1)]` and 2A - B = `[(2, -1, 5), (2, -1, 6), (0, 1, 2)]`

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Let A+2B=[(1,2,0),(6,-1,3),(-5,3,1)] and 2A-B=[(2,-1,5),(2,-1,6),(0,1,2)], then find tr(A)-tr(B).

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