algebra

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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?

  • algebra -

    I figured out number 5.
    I'm still having problems with the other one though.

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