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Find all values of A such that the following system of equations is consistent. -2x + 4y - 4z = -4 2r + (x-4)y

Find all values of A such that the following system of equations is consistent. -2x + 4y - 4z = -4 2r + (x-4)y + 4z = 5 x-2y+2z=(A-1)(A-2)

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