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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