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The sum of two numbers is 21. Their difference is 7. What are the numbers?
4 months ago
Q:
The sum of two numbers is 21. Their difference is 7. What are the numbers?
Accepted Solution
A:
Answer:The numbers are14and7. Explanation:Let the numbers bexandy.x+y=21x−y=7y=21−xx−(21−x)=7x−21+x=72x=28x=14∴14+y=21y=7