anonymous
  • anonymous
3x+2y= 12 solve for y?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Isolate y. What do you have to do first?
HELP!!!!
  • HELP!!!!
2y=-3x+12 y=-3/2+6
HELP!!!!
  • HELP!!!!
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anonymous
  • anonymous
So I have to subtract 3x from the right side of the equation right?
anonymous
  • anonymous
@HELP!!!! I wish Hersher could of done it, instead of it being done for him/her.
anonymous
  • anonymous
Sorry, I just signed up for this site 5 minutes ago
anonymous
  • anonymous
Yes @Hesher
anonymous
  • anonymous
one second
anonymous
  • anonymous
so after I move 3x (which is now -3x) to the side of the equation with 12 on it, do I divide by 3x on that side?
anonymous
  • anonymous
*Do I divide -3x and 12 by 3?
anonymous
  • anonymous
No.
HELP!!!!
  • HELP!!!!
so first you isolate the y to one side of the equation. But for this problem you would move the x variable to the right side to make the equation easier.
anonymous
  • anonymous
|dw:1352677832823:dw|
anonymous
  • anonymous
oohhh
HELP!!!!
  • HELP!!!!
............
anonymous
  • anonymous
Now, what should you do? @Hesher
anonymous
  • anonymous
|dw:1352677981230:dw|
anonymous
  • anonymous
sorry, Im bad at drawing with a mouse
anonymous
  • anonymous
No, do not divide by 3x. You've subtracted it from the left side to the right. You are done with the 3x. Now you want to isolate 'y'. But you have '2y'..so what should you do?
anonymous
  • anonymous
so then 2y = 4, So I divide 2 and 4 both by 2? y = 2 ?
anonymous
  • anonymous
|dw:1352678175920:dw|
anonymous
  • anonymous
Where did you get a 4 from??
anonymous
  • anonymous
from dividing 12 by 3
anonymous
  • anonymous
|dw:1352678232917:dw|
anonymous
  • anonymous
No, you do not divide 12 by 3
anonymous
  • anonymous
I divide everything by two?
anonymous
  • anonymous
No, that wouldn't work
anonymous
  • anonymous
Yes.
anonymous
  • anonymous
|dw:1352678367244:dw|
anonymous
  • anonymous
Thank you
anonymous
  • anonymous
Np.

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