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Mathematics 21 Online
OpenStudy (anonymous):

6. Solve the system using elimination by addition. 4x - 2y + 2z = 2 -x + y - 3z = -4 4x - 3y + 7z = 9 (Points: 5) (-1, -7, 0) (3, 3, 2) {(2s – 3, 5s – 7, s) | s is any real number} No solution abcd?

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