3a -a+b -a+c
-b+c 3b -b+c
-c+a -c+b 3c
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Answer:
3a-a+b-a+c-b+3b-b+c-c+a-c+b+3c
Step-by-step explanation:
4a-2a+3b+4c
=2a+3b+4c
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