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anonymous

  • 4 years ago

I dont understand how to remove the parentheses and simplify for the following problem 9x-(7-3x) Can someone help me ?

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  1. anonymous
    • 4 years ago
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    You distribute : 9x-7+3x And then simplify..

  2. anonymous
    • 4 years ago
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    Do you know how to distribute ?

  3. anonymous
    • 4 years ago
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    Okay so it would be 63x+27x is that all

  4. anonymous
    • 4 years ago
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    No. How did you get that ?

  5. anonymous
    • 4 years ago
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    I distributed and multiplied can you help me solve it

  6. anonymous
    • 4 years ago
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    Okay :)

  7. anonymous
    • 4 years ago
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    Oh wait. You distributed the 9 as well ?

  8. anonymous
    • 4 years ago
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    yes the 9 to the 7 and the 9 to the 3

  9. anonymous
    • 4 years ago
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    I did that and thats what i came up with

  10. anonymous
    • 4 years ago
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    That's wrong. Because you only have a negative before the brackets but if it was like this : -9x(7-3x) The yeah you MUST distribute the 9. But your question is like this : 9x-(7-3x) So you will only distribute the negative. => 9x-7+3x ( and don't forget: negative * negative = positive ) And when you simplify it all you have to do is COMBINE LIKE TERMS!! => 12x-7

  11. anonymous
    • 4 years ago
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    Get it ?

  12. anonymous
    • 4 years ago
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    So i just remove them by combine the subtraction sign in the problem

  13. anonymous
    • 4 years ago
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    I have another question

  14. anonymous
    • 4 years ago
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    Okay, what is it ?

  15. anonymous
    • 4 years ago
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    Its just like the last one but im still a lil confused -6(3r+8)+9(7r+3)

  16. anonymous
    • 4 years ago
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    What's confusing you ?

  17. anonymous
    • 4 years ago
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    I keep wanting to multiply would it be 18r-48+63r-27 combine like terms then simplify

  18. anonymous
    • 4 years ago
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    Yessss! That's absolutely correct :D

  19. anonymous
    • 4 years ago
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    Can you simplify it ?

  20. anonymous
    • 4 years ago
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    is it 45r-27 ???

  21. anonymous
    • 4 years ago
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    No, combine like terms : (18r+63r) + (-48-27 ) Now do it from here :)

  22. anonymous
    • 4 years ago
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    is it 45r-27

  23. anonymous
    • 4 years ago
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    no

  24. anonymous
    • 4 years ago
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    (18r+63r) + (-48-27 )

  25. anonymous
    • 4 years ago
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    and solve it :)

  26. anonymous
    • 4 years ago
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    I dont understand still

  27. anonymous
    • 4 years ago
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    You have to combine like terms right ? 18r and 63r are like terms ^ Add them => 81r And -48 and -27 are like terms ^ Add them => -75 So, what will you get ? 81r-75 Do you get it ? :D

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