anonymous
  • anonymous
Solve and type in ordered pair. x+9y=6 x=9y-5 I would change the x=9y-5 into the same form as x+9y=6 so x-9y=5 right? Then what do I do?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Can I solve and get the coordinates by elimination process?
anonymous
  • anonymous
that's right, use elimination
anonymous
  • anonymous
Ok thank you

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anonymous
  • anonymous
How would that work with x and 9y's being in the same spots? Which one would I eliminate?
anonymous
  • anonymous
f(x) = −2x + 8, find x if f(x) = 22 -2x+8 = 22 -2x = 22-8 -2x = 14 x = -7
anonymous
  • anonymous
that's for ur other question
anonymous
  • anonymous
x+9y=6 x-9y=5 x=1?
anonymous
  • anonymous
the equation should be: x+9y=6 x-9y = -5
anonymous
  • anonymous
Oh ok so the answer would be x=1? right?
anonymous
  • anonymous
hmm, how did u get it? show me
anonymous
  • anonymous
I did x+9y=6 and then added x-9y=-5 and canceled out the 9y-9y, and then 6-5 is one leaving me with x=1.
anonymous
  • anonymous
Does that make sense?
anonymous
  • anonymous
ok, bad at math, we can do another way, which is subtitution. we have: x+9y=6 x=9y-5 then just plug x=9y-5 into x+9y=6
anonymous
  • anonymous
I'm sorry I just became very confused
anonymous
  • anonymous
I did x+9y=6 and then added x-9y=-5 and canceled out the 9y-9y, and then 6-5 = 1, till this u are right, but u forget to do x+x = 2x 2x=1 x =1/2
anonymous
  • anonymous
OOOHHHH ok
anonymous
  • anonymous
So then to find y I replace x with 1/2? right
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok so I do that for both equations too right?
anonymous
  • anonymous
no need, do it just to 1 equation
anonymous
  • anonymous
ok what do I do with the y in the equation I do? Sorry I am stupid at this
anonymous
  • anonymous
x = 1/2, plug into x+9y=6
anonymous
  • anonymous
ok so that would be 1/2+9y=6
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok than would I subtract/add 9y to both sides?
anonymous
  • anonymous
9y = 6 - 1/2, got it?
anonymous
  • anonymous
I think, so to find y I would make the equation like this 2*1/2-9y=6 1-9y=6 -9y=5 y=-.6?
anonymous
  • anonymous
is that even close to right?
anonymous
  • anonymous
2*1/2-9y=6 ---> it's mean 2x-9y = 6 --->but our equation is x+9y=6 my answer : 1/2 +9y=6 9y = 11/2 y = 11/18 (x,y) = (1/2 , 11/18) to check ur question is correct or no, plug the order pair into initial equation: x+9y=6 1/2 + 9(11/18) = 1/2 + 11/2 = 12/2 = 6
anonymous
  • anonymous
ok, thank you so much for help

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