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- 5am - 3n + 6
+2n - 8 + 2m
-------------------------------
- 5am - n - 2 + 2m
Respuesta.
- 5am - n - 2 + 2m
-5am-3n+6 + 2m+2n-8-
5am + 2m - 3n+2n + 6-8
-5am + 2m - n - 2
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