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anonymous

  • one year ago

4(-3x-5)-(10+4x) Can someone simplify it?

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  1. FireKat97
    • one year ago
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    Firstly, what you want to do is open the brackets up. so do that and show me what you get

  2. anonymous
    • one year ago
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    I don't really know what you are asking. That is exactly like it is.

  3. FireKat97
    • one year ago
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    Okay what I mean is, first you want to expand the brackets so these things "( )", do you know how to do that?

  4. Compassionate
    • one year ago
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    4(-3x-5)-(10+4x) First, multiply 4 by (-3x - 5) and multiply "-", which is just -1, by (10 + 4x) So... -12x - 20 - 10 - 4x All I did was multiply 4(-3x - 5) by 4 and I made everything in -(10 + 4x) negative because it had a negative sign in front of it, which is understood to just be -1. Your next step is to add like terms.

  5. anonymous
    • one year ago
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    Like ( -3x - 5) Like expand it? Oh gosh

  6. anonymous
    • one year ago
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    -16x - 30?

  7. Compassionate
    • one year ago
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    -12x - 20 - 10 - 4x -12x - 4x - 20 - 10 -16x - 30 Yup! Correcto.

  8. anonymous
    • one year ago
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    I got that, but it looked wrong. It's just so short. Is it always that short?

  9. anonymous
    • one year ago
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    Like when I was doing it before

  10. Compassionate
    • one year ago
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    Mhm! Sometimes it's even shorter! Sometimes it's just x. or -x.

  11. anonymous
    • one year ago
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    I have one more, and I don't get it at all. Would you help me with that one too?

  12. anonymous
    • one year ago
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    (4x-9)+8(2x+3)-7x

  13. anonymous
    • one year ago
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    I got it to around -24x - 12 but that isn't an answer on the sheet (It is one of those horrible joke homework papers, where the answers correspond to a letter)

  14. anonymous
    • one year ago
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    @Compassionate ?

  15. Compassionate
    • one year ago
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    (4x-9)+8(2x+3)-7x So (4x - 9) + 8(2x + 3) - 7x 4x - 9 comes out of the brackets because there is nothing in front of it If it were 2(4x - 9), we could do something with it, but in this case, we can't So now we have 4x - 9 + 8(2x + 3) - 7x Now, we CAN do something with our 8(2x + 3) (And it's called MULTIPLICATION) \[4x - 9 + (8 \times 2x) + (8 \times 3) - 7x\] We are basically multiplying 8 by everything inside of (2x + 3) So we now have... 4x - 9 + 16x + 24 - 7x Now we just add like terms

  16. anonymous
    • one year ago
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    13x + 15? Wow I was far.

  17. anonymous
    • one year ago
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    Thank you SO much by the way!

  18. Compassionate
    • one year ago
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    Yup! Good job, man! I gotta go. Don't forget to fan me if you want to keep track of me and get ahold of me when you want to. I gotta go. TTYL

  19. anonymous
    • one year ago
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    (I fanned you and medaled you too! You are literally the best)

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