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Algebra Help

The sum of two numbers is 60 and the difference is 10. What are the numbers?

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Lauren H. | Experienced High School Chemistry TeacherExperienced High School Chemistry Teache...
4.8 4.8 (12 lesson ratings) (12)
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x + y = 60
 
x - y = 10
 
Add these two equations together (y disappears)
 
x + x = 70
 
2x = 70
 
x = 35, you solve for y!