Find the pivots and the solution for these four equations: 2x + y = 0 x + 2y + z = 0 y +
Chapter 1, Problem 1.3.20(choose chapter or problem)
Find the pivots and the solution for these four equations: 2x + y = 0 x + 2y + z = 0 y + 2z + t = 0 z + 2t = 5.
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