Respuesta:
7a - 8b + 5c
- 7a
5a - 6b
- 8a + 12b
---------------------------
12a - 15a - 14b + 12b + 5c =
- 3a - 2b + 5c
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Verified answer
Respuesta:
7a - 8b + 5c
- 7a
5a - 6b
- 8a + 12b
---------------------------
12a - 15a - 14b + 12b + 5c =
- 3a - 2b + 5c