anonymous
  • anonymous
Evaluate expression for x=4 , y=3 3(x+y)- 3/(x-y) +5 Is the correct answer 13?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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marcelie
  • marcelie
29
anonymous
  • anonymous
Could you explain this?
marcelie
  • marcelie
nvm its 3

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More answers

anonymous
  • anonymous
XD I'll do it too for a second opinion. :)
marcelie
  • marcelie
|dw:1442544109613:dw|
anonymous
  • anonymous
Thats not one of the options......
anonymous
  • anonymous
It is 3 though... I just did it...
anonymous
  • anonymous
The optipns are A) -13 B)13 C)29 D)23
zepdrix
  • zepdrix
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? :)
anonymous
  • anonymous
The first one :3
anonymous
  • anonymous
Oooh! That changes everything! XD
zepdrix
  • zepdrix
Oh :( Ya I guess that's where the confusion was.
anonymous
  • anonymous
I dont know how to make it all fancy like that cause im new here lol
anonymous
  • anonymous
XD I'm new too. :) I'll see what I get for my answer.
zepdrix
  • zepdrix
\[\large\rm \quad 3(x+y)- \frac{3}{(x-y)} +5\] 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.
anonymous
  • anonymous
XD Indeed. So silly.
zepdrix
  • zepdrix
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? :)
anonymous
  • anonymous
13?
zepdrix
  • zepdrix
WOOPS :O 4+3 = 7, i made a boo boo
zepdrix
  • zepdrix
\[\large\rm \quad 3(7)- \frac{3}{(1)} +5\]Then,\[\large\rm \quad 21- 3 +5\]
anonymous
  • anonymous
23?
zepdrix
  • zepdrix
yay good job \c:/
anonymous
  • anonymous
So the correct answer is 23 :)

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