Question 178952: a-{5b-[a-(3b-2c)+c-(a-2b-c)]}
Grouping symbols removed:
Like terms removed:
Answer by colliefan(242)   (Show Source):
You can put this solution on YOUR website! a-{5b-[a-(3b-2c)+c-(a-2b-c)]}
This one, I won't show so many intermediate steps and won't write all the comments. See the other problems. The ideas are the same. As they get longer, start with the grouping that most deeply embedded in the expression. Watch the signs!
a-{5b-[a+(-3b+2c)+c+(-a+2b+c)]}
a-{5b-[a-3b+2c+c-a+2b+c]}
a-{5b+[-a+3b-2c-c+a-2b-c]}
a-{5b-a+3b-2c-c+a-2b-c}
a+{-5b+a-3b+2c+c-a+2b+c}
a-5b+a-3b+2c+c-a+2b+c
a+a-a-5b-3b+2b+2c+c+c
a-6b+4c
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