Posted by **Katherine** on Tuesday, October 5, 2010 at 6:28pm.

I need help showing me how to do some problems..

5. 28-0.3y = 0.7y-12

I got 10/400 or 0.025..

and

3c-4c+1=5c+2+3

I ended up getting c=1 but the book says it's wrong too.. What am I doing wrong?

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