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Solve for w, x, y, z
x + 2y - z = 3
2x - y + z - w = -3
y + 2z - w = -7
x + 3y + 2z + 2w = 3
Answers: 2
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Solve for w, x, y, z
x + 2y - z = 3
2x - y + z - w = -3
y + 2z - w = -7
...
x + 2y - z = 3
2x - y + z - w = -3
y + 2z - w = -7
...
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