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gillian0100

  • 3 years ago

please help me with this problem , i need to know what the steps are on how to find x ---- 28-6(2x+4)=124 .

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  1. hartnn
    • 3 years ago
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    first use the distributive property \(a(b+c)=ab+ac\)

  2. hartnn
    • 3 years ago
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    and tell me what u get for 6(2x+4)

  3. cathyangs
    • 3 years ago
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    Is that really the best course of action? I would think that subtracting 28, and then dividing by -6...etc would be faster.

  4. gillian0100
    • 3 years ago
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    yeah i dont remember the teacher saying anything about doing that hartnn

  5. hartnn
    • 3 years ago
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    this action will lead to dividing by 12 in the end,whicj is simpler than dividing by -6

  6. gillian0100
    • 3 years ago
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    im confused can somone write out all the steps , then i can study what you did ? i have other problems like this on my homework i need to know how to solve this type of problem

  7. hartnn
    • 3 years ago
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    i mean dividing by -6 and 2 also *

  8. cathyangs
    • 3 years ago
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    Personally, this is my approach: 28-6(2x+4)=124 ---Subtract 28 -6(2x+4)=96 ---multiply by -1, then divide by 6 (2x+4)=-96/6=-16 ---rewrite as 2x+4=-16 ---subtract 4 2x=-20 ---divide by 2 x=-10 This is my way of doing these kinds of questions, but there are definitely others.

  9. gillian0100
    • 3 years ago
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    i like this way , it seems easy to understand thank you! !

  10. cathyangs
    • 3 years ago
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    You're welcome! :) I'm glad to help.

  11. cwrw238
    • 3 years ago
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    28-6(2x+4)=124 distribute 28 - 12x - 24 = 124 28 - 24 - 124 = 12x -120 = 12x x = -10

  12. cwrw238
    • 3 years ago
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    either way is same amount of work

  13. gillian0100
    • 3 years ago
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    acually that way of doing it looks more familiar

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