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Linear Systemshard
0:00.0

Solve for kkk such that the system x+2y+z=4x + 2y + z = 4x+2y+z=4, 3x+8y+7z=203x + 8y + 7z = 203x+8y+7z=20, 2x+7y+kz=152x + 7y + kz = 152x+7y+kz=15 has infinitely many solutions.