kklmingo kklmingo

14-06-2017
Mathematics

contestada

The sum of two numbers is 45 and the difference is 17. What are the numbers?

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koziadam koziadam

14-06-2017

U S E A N E Q U A T I O N

45=x+(x+17)
45=2x+17
28=2x
/2 /2
14=x

x 14 is the first number
x+17 31 is the second number

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