Respuesta :

1. (1,-2)
2. (-6,5)
3. (-2/3,7/3)
4. (-3,3)
5. (3,-5)
6. (7/3,19/2)
7. (-8,11)
8. (1,-15/4)
9. (8/5, 7/10)
10.(13/16, -11/4)
11. (-2,0)
12. (1,3)
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