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anonymous

  • one year ago

Evaluate expression for x=4 , y=3 3(x+y)- 3/(x-y) +5 Is the correct answer 13?

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  1. marcelie
    • one year ago
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    29

  2. anonymous
    • one year ago
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    Could you explain this?

  3. marcelie
    • one year ago
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    nvm its 3

  4. anonymous
    • one year ago
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    XD I'll do it too for a second opinion. :)

  5. marcelie
    • one year ago
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    |dw:1442544109613:dw|

  6. anonymous
    • one year ago
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    Thats not one of the options......

  7. anonymous
    • one year ago
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    It is 3 though... I just did it...

  8. anonymous
    • one year ago
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    The optipns are A) -13 B)13 C)29 D)23

  9. zepdrix
    • one year ago
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    Ashley was this your equation?\(\large\rm \quad 3(x+y)- \frac{3}{(x-y)} +5\) Or this? \(\large\rm \quad \frac{3(x+y)- 3}{(x-y)} +5 \) Or something else? :)

  10. anonymous
    • one year ago
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    The first one :3

  11. anonymous
    • one year ago
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    Oooh! That changes everything! XD

  12. zepdrix
    • one year ago
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    Oh :( Ya I guess that's where the confusion was.

  13. anonymous
    • one year ago
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    I dont know how to make it all fancy like that cause im new here lol

  14. anonymous
    • one year ago
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    XD I'm new too. :) I'll see what I get for my answer.

  15. zepdrix
    • one year ago
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    \[\large\rm \quad 3(x+y)- \frac{3}{(x-y)} +5\] IF it had been the second one, you would've needed to put brackets around the whole numerator, like this (3(x+y)- 3)/(x-y)+5 But it was the first one, so you entered it perfectly :) We were just being silly.

  16. anonymous
    • one year ago
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    XD Indeed. So silly.

  17. zepdrix
    • one year ago
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    Just plug in some numbers :D\[\large\rm \quad 3(4+3)- \frac{3}{(4-3)} +5\] \[\large\rm \quad 3(21)- \frac{3}{(1)} +5\]What do you get? :)

  18. anonymous
    • one year ago
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    13?

  19. zepdrix
    • one year ago
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    WOOPS :O 4+3 = 7, i made a boo boo

  20. zepdrix
    • one year ago
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    \[\large\rm \quad 3(7)- \frac{3}{(1)} +5\]Then,\[\large\rm \quad 21- 3 +5\]

  21. anonymous
    • one year ago
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    23?

  22. zepdrix
    • one year ago
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    yay good job \c:/

  23. anonymous
    • one year ago
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    So the correct answer is 23 :)

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