Solve the following systems. x + y +z = 1 1. {x + y – 2z = 3 2х + у +z %3D 2 x + y – z = 0 2.{2х — Зу + z%3D0 x – 4y + 2z = 0 by Gaussian elimination method.

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A: I am attaching image so that you understand each and every step.

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