Given that a system of linear equations has the following augmented matrix: [1 2 -2 1 3 5 1 2 4 7 −1 6 Find a row echelon form of the above matrix, and use it to determine which of the following is true about the linear system. The system has no solution. The system has precisely one solution. The system has infinitely many solutions. The system has more than one, but finitely many, solutions.

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