Question texta) Using Gaussian elimination or otherwise, solve the system of equations[math: x+2y−z=66x−y+z=72x+3y−2z=6][math: x=]Answer 1 Question 4[input], [math: y=]Answer 2 Question 4[input], [math: z=]Answer 3 Question 4[input]b) For which real number [math: k] does the system of equations [math: x+2y−z=6kx−y+z=72x+3y−2z=6]have no solution?[math: k=] Answer 4 Question 4[input]多项填空题

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