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Linear AlgebraHardRow Reduction & Rank

Row Reduction & Rank · Hard problem

Solve the system   1x+2y−3z=−4,−1x+3y+2z=−5,−3x−2y+0z=13\;1x + 2y - 3z = -4, \quad -1x + 3y + 2z = -5, \quad -3x - 2y + 0z = 13. What is xx?