7a+2b-3c,2a-4b+6c,-2a+1b-4c add the following
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Answered by
0
7+2+3+2+4+6+-2+1+-4=19 abc
Answered by
1
Answer:
7a-1b-1c
Step-by-step explanation:
(7a+2b-3c)+
(2a-4b+6c)+
(-2a+1b-4c) = 7a-1b-1c
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