Liv1234
  • Liv1234
Combine like terms. What is the simpler form of each expression? 9C-6D+4C-3D
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
which are the like terms in your expression?
anonymous
  • anonymous
'In algebra, like terms are terms that have the same variables and powers.' from google. so in your expression the like terms are 9C and 4c, and -6D and -3D
anonymous
  • anonymous
you just need to add 9C to 4C. You will get 13C now add -6D and -3D, you will get -9D.

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Liv1234
  • Liv1234
Okay, so here's the thing, I actually did do the equation, but my teacher said that she wasn't clear about what my answer was so.
Liv1234
  • Liv1234
What I did was: 9c+4c-6d-3d 9c+4c=13c -6d-3d=-9d 13c-9d 9c+4c+6d-3d 13c+13d
anonymous
  • anonymous
I don't really understand what you did in last and previous lines. The 13C-9D is correct. I think that's why your teacher wasn't clear about the answer.
Liv1234
  • Liv1234
Ohh okay, so you think that if I resubmit it to her explaining how I made the mistake and showing her what is right she will give the points back?
anonymous
  • anonymous
i think so. did she tell you why she wasn't clear? or not?
Liv1234
  • Liv1234
No, but I did email her asking her if I could fix what I did wrong and resubmit it to her.
anonymous
  • anonymous
there shouldn't be anything in this new solution to not return you points back. If I were you, I would do the same way as I wrote you.
Liv1234
  • Liv1234
Okay, I will. I'm also going to explain why I was wrong so she knows what I did to get the correct answer lol.
anonymous
  • anonymous
ok. that's great. :) hope that your teacher return you points back. :)
Liv1234
  • Liv1234
Oh, actually I know what she was confused about! I can show you.
anonymous
  • anonymous
yep. what was it?
Liv1234
  • Liv1234
Liv1234
  • Liv1234
I did have the answer correct, but then I put in another answer saying it was the "modified version" that is why she must have taken the point away.
anonymous
  • anonymous
yes. i agree with you.
Liv1234
  • Liv1234
So, I bet if I send her an email and explain that the answer is 13C-9D, I'll get my point back.
anonymous
  • anonymous
i hope so. anyway there is no mistake in it. Some teachers (like my little brother's one) take points because they don't like the explanation, but here must be no mistake and the explanation is very detailed in my opinion.

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