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Calculate the solution set of the following system, using Gauss-Jordan elimination method (that is by transforming the augmented matrix of the system in its

Calculate the solution set of the following system, using Gauss-Jordan elimination method (that is by transforming the augmented matrix of the system in its reduced row echelon form) (a) x+y+z+w= 5 x+2w = 2 x + 2y + z = 0 (b) x+y+32 + 2w = 7 2x-y+ 4w = 8 3y+3z8

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