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Solve the system by back substitution. - 2x - 4y - Z -3w= -1 y + 6z + 2w= Z+ W = 2 - 5w

Solve the system by back substitution. - 2x - 4y - Z -3w= -1 y + 6z + 2w= Z+ W = 2 - 5w = - 15 The solution is ( Type intea

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