Answer :

= a + 2b + 3c - 4a - 6b + 5c
= ( -3a - 4b + 8c )
Hence the answer is option E
Lilith
[tex](a + 2b + 3c) - (4a + 6b - 5c)= a + 2b + 3c - 4a - 6b + 5c =\\ \\= -3a -4b +8c \\ \\Answer : \ E. \ \ -3a- 4b + 8c[/tex]