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Solve the system by substitution, if possible.
Designated Driver
A person chosen to abstain from alcohol on a social occasion so that they can drive others safely.
Lead Poisoning
A medical condition caused by high levels of the heavy metal lead in the body, leading to serious health issues including damage to the nervous system.
Tornado Sirens
Warning systems used to alert residents in an area about an approaching tornado, allowing them to seek safety promptly.
Age-Related
Pertaining to changes that occur naturally as part of the aging process.
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