Respuesta:
a+b: 1. a-b:-15. b-a: 15
a+b: 1. a-b:-13. b-a: -13
a+b:1. a-b: -7. b-a: -7
a+b:2. a-b:2. b-a:2
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Respuesta:
a+b: 1. a-b:-15. b-a: 15
a+b: 1. a-b:-13. b-a: -13
a+b:1. a-b: -7. b-a: -7
a+b:2. a-b:2. b-a:2