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Mathhelp346

  • 4 years ago

3x-(2+6x) less than or equal to 28 i keep getting 10/3? did i do something wrong?

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  1. anonymous
    • 4 years ago
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    -3x<=30 x<=30/-3 x<=-10 is what I got

  2. anonymous
    • 4 years ago
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    does that make sense?

  3. anonymous
    • 4 years ago
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    to you?

  4. Mathhelp346
    • 4 years ago
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    um no

  5. anonymous
    • 4 years ago
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    \[3x-2-6x\] \[-3x-2\]

  6. anonymous
    • 4 years ago
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    can you see that now?

  7. anonymous
    • 4 years ago
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    that's the leftside of your equation. add 2 to both sides. and then divide both sides by -3 then you will get -10 as your answer

  8. Mathhelp346
    • 4 years ago
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    ut wouldn't u add -6x to -6x and 3x?

  9. Mathhelp346
    • 4 years ago
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    i mean add 6x

  10. anonymous
    • 4 years ago
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    when you see -(2+6x) this means you distribute the negative to both terms so -2-6x is what it looks like with the brackets removed so you have +3x and -6x when you add those 2 terms you get -3x

  11. Mathhelp346
    • 4 years ago
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    ohhh ok

  12. anonymous
    • 4 years ago
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    3x-(2+6x)<or equal to 28. => 3x-2-6x<or equal to 28. => -3x-2< or equal to 28. => 3x+2> or equal to 28. (Note the change in sign). 3x>or equal to 26 Therefore x is > or equal to 26/3. This is what I got. -__- What's the correct answer?

  13. anonymous
    • 4 years ago
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    i wouldn't do that.

  14. anonymous
    • 4 years ago
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    Why not? o.o?

  15. anonymous
    • 4 years ago
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    Is it wrong? :/

  16. anonymous
    • 4 years ago
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    http://www.webmath.com/_answer.php

  17. anonymous
    • 4 years ago
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    yes, it was wrong but there's how a calculator does it

  18. anonymous
    • 4 years ago
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    The page isn't opening. So, what is the correct answer?

  19. anonymous
    • 4 years ago
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    well technically i made a mistake! so actually when you divide by the negative you should get as a final answer x>=-10

  20. anonymous
    • 4 years ago
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    and that is correct

  21. anonymous
    • 4 years ago
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    3x-(2+6x)<=28 =3x-2-6x<=28 =-3x-2<=28 +3x +3x =-2<=28+3x =-28 -28 =-30<=3x =-10<=x

  22. anonymous
    • 4 years ago
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    Yup. Got it. Lol. That was such a horrible mistake on my part. I forgot to put the -ve sign on 28. :/ Thanks. (:

  23. anonymous
    • 4 years ago
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    be careful with the <> symbol. I need to correct mine. It should be -10>=x

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