anonymous
  • anonymous
solve the system of equations x+y=7 x-y=3 the answer should be in an ordered pair
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
You would solve this by Elimination. Which means that
anonymous
  • anonymous
Isolate for x in the second equation: x= 3+y. Insert 3+y into the first equation to solve for y: 3+y + y = 7 2y=4 y=2 x=3+2y = 3+ 4 = 7.
anonymous
  • anonymous
Dang it :P lol

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anonymous
  • anonymous
x+y=7 time (-1) then -x-y=-7 -x-y=-7 ADD x-y=3 ----------------- -2y = -4 y= -4/-2 y=2 subtitution y =2 slove for x x+2=7 x= 7-2 x =5
toxicsugar22
  • toxicsugar22
x=5,y=-2
anonymous
  • anonymous
x=5 y=2
anonymous
  • anonymous
I sure it correct
anonymous
  • anonymous
how would you graph this?
toxicsugar22
  • toxicsugar22
yeah ur right it is corect
anonymous
  • anonymous
The x is the slope and the y is the y intercept (:
anonymous
  • anonymous
the rest of my question wants to know if this is dependent or independent and alsoconsistent or inconsistent
toxicsugar22
  • toxicsugar22
it is dependent and it is consistent
anonymous
  • anonymous
CRAP!! i forgot the definition.... >.<
anonymous
  • anonymous
can anyone graph it and send me a link so i can see how it should look?
anonymous
  • anonymous
sorry I wrong page
anonymous
  • anonymous
u have grid paper?
anonymous
  • anonymous
no i do it on the computer
anonymous
  • anonymous
u need rewrite to slope intercept than draw grap on the grid paper,
anonymous
  • anonymous
Yeah, there was a slight mistake in that I wrote x=3+2y instead of x=3+y. Honestly, graphing a function like this shouldn't be any problem at all. y=x-3. Start at y(0)=-3, y(1)= -2, y(2)=-1, y(3)=0, and so on... Isolate for y, (y=x-3), and insert whatever x you need in order to get the information you need.
anonymous
  • anonymous
x+y=7 , y= -x +7 x-y=3 , y = x-3
anonymous
  • anonymous
let me send u grap , u will see intercept at (5,2)
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
sorry y=2 on the grap I write y =3
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
Isn't it a bit more productive to show this person the way to the anser instead of spoonfeeding him?
anonymous
  • anonymous
Answer.
anonymous
  • anonymous
Answer?

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