Math puzzle: Fix the matchstick equation
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- 05/19/2026, 8:58 AM
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- 05/19/2026, 8:50 AM
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- 05/19/2026, 8:50 AM
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scientificamerican.com
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- 05/19/2026, 6:47 AM
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scientificamerican.com
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- 05/19/2026, 6:47 AM
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scientificamerican.com
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