chaterbox chaterbox
  • 25-02-2016
  • Mathematics
contestada

if (a,b) is an ordered pair for x-y=5, is (b,a) also a solution?

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Ilie
Ilie Ilie
  • 25-02-2016
The answer is no. Because solution (a,b) means x=a, y=b.and we have a-b=5.  And (b,a) would mean x=b and y=a but then x-y=b-a=-(a-b)=-5≠5. So  the pair (b,a) is not a solution.


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