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

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asked Nov 13, 2017 229k views

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Pedro · Answer 1 · 2017-11-18T03:49:50+0000

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.

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

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