SOLUTION: Disprove: If a, b, and c are integers such that a does not divide b and c does not divide d, then a+c does not divide b+d

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Question 527300: Disprove:
If a, b, and c are integers such that a does not divide b and c does not divide d, then a+c does not divide b+d

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Counterexample: Let a = 2, b = 7, c = 3, d = 13. Here, the conditions are met, but a+c divides b+d (5 divides 20).