Question 188860
Please help me solve this problem: 
Solve using any method: w + 3x + z = 0
w + 4x + 2y = 0
- 2x - 2y - z = 0
2w - 4x + y + z = 0
w - 2x - y + z = 0
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Just by inspection:
w = x = y = z = 0