How do you combine like terms in #(3a + 2b - 7c ) + ( 6b - 4a + 8c ) + ( - 7c - 3a - 2b )#?

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Answer 1 · 2017-04-12T22:38:51

See the entire solution process below:

First, remove all of the terms from parenthesis. Be careful to handle the signs of each individual term correctly:

#3a + 2b - 7c + 6b - 4a + 8c - 7c - 3a - 2b#

Next, group like terms:

#3a - 4a - 3a + 2b + 6b - 2b - 7c + 8c - 7c#

Now, combine like terms:

#(3 - 4 - 3)a + (2 + 6 - 2)b + (-7 + 8 - 7)c#

#-4a + 6b - 6c#