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OpenStudy (anonymous):
Solve x + y + z = -6 x – y + z = -2 2x + y – 3z = 5 Infinite number of solutions no solutions (4, -6, -8) (-1, -2, -3)
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OpenStudy (anonymous):
donkey work, let the browser do it http://www.wolframalpha.com/input/?i=+x+%2B+y+%2B+z+%3D+-6%2C+x+%E2%80%93+y+%2B+z+%3D+-2%2C+2x+%2B+y+%E2%80%93+3z+%3D+5
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