balloon math puzzle brain teaser
can you solve this puzzle? x + 2y + 3z = 0 x - y + z = 0 x + y - 2z = 0 x + y + z = ?
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can you solve this puzzle? x + 2y + 3z = 0 x - y + z = 0 x + y - 2z = 0 x + y + z = ?