Find the sum of (a - b), (2a + b - 3c),
and (a + 3b + 6c).
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Answer:
4a+b+3c is the answer hope it is useful and don't forget to mark as brilliant cause I am low on points
Answered by
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Answer:
=a - b+2a+b-3c+a+3b+6c
=4a+3b+3c
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