anonymous
  • anonymous
Again substitution method! 2x+9y=66 -6x+y=26 what is the order pair?
Mathematics
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anonymous
  • anonymous
Again substitution method! 2x+9y=66 -6x+y=26 what is the order pair?
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
Solve for one variable and then plug that in to the other equation to get an equation with one unknown.
anonymous
  • anonymous
ok can you please help me more with that
anonymous
  • anonymous
Ok so I would take -6x+y=26 and solve for y and then plug that into 2x+9y=66 for y and solve for x.

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anonymous
  • anonymous
Well that being said I got y=6x=26 for the y= and for the x= I got y/6-13/3 is that correct cause I am not positive
anonymous
  • anonymous
Not quite sure what you did, but I'll start working it out. Maybe you can see it that way. :)
anonymous
  • anonymous
y=6x+26 so then the other equation becomes 2x+9(6x+26)=66
anonymous
  • anonymous
Thanks :)
anonymous
  • anonymous
Can you solve for x from there?
anonymous
  • anonymous
-3
anonymous
  • anonymous
Yahtzee! Now plug in -3 for x into let's say y=6x+26 to get the y value. Then your ordered pair is (x,y)
anonymous
  • anonymous
8
anonymous
  • anonymous
-3,8 is the order pair
anonymous
  • anonymous
So how do you know which equation to put in so that you get the right answer or does it work with both?
anonymous
  • anonymous
It will work with both.
anonymous
  • anonymous
I hope that is right I gave you a medal for that thanks a bunch I am trying to learn this math and it is not easy to me but I am welling to set here til I can work it out with someone
anonymous
  • anonymous
That was correct thanks again!!!!!
anonymous
  • anonymous
Thanks. It is right :) Solving systems of equations by substitution method is the same process every time. No problem.

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