SOLUTION: SUBTRACT THE SUM OF 3a-4b+5c and -5a+7b-9c from a-b-c
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Question 773921: SUBTRACT THE SUM OF 3a-4b+5c and -5a+7b-9c from a-b-c
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
(a - b - c) - ((3a - 4b + 5c) + (-5a + 7b - 9c))
= (a - b - c) - (2a + 3b - 4c)
= a - b - c - 2a - 3b + 4c
=
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