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anonymous

  • 5 years ago

solve the system of equations x+y=7 x-y=3 the answer should be in an ordered pair

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  1. anonymous
    • 5 years ago
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    You would solve this by Elimination. Which means that

  2. anonymous
    • 5 years ago
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    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.

  3. anonymous
    • 5 years ago
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    Dang it :P lol

  4. anonymous
    • 5 years ago
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    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

  5. toxicsugar22
    • 5 years ago
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    x=5,y=-2

  6. anonymous
    • 5 years ago
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    x=5 y=2

  7. anonymous
    • 5 years ago
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    I sure it correct

  8. anonymous
    • 5 years ago
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    how would you graph this?

  9. toxicsugar22
    • 5 years ago
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    yeah ur right it is corect

  10. anonymous
    • 5 years ago
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    The x is the slope and the y is the y intercept (:

  11. anonymous
    • 5 years ago
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    the rest of my question wants to know if this is dependent or independent and alsoconsistent or inconsistent

  12. toxicsugar22
    • 5 years ago
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    it is dependent and it is consistent

  13. anonymous
    • 5 years ago
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    CRAP!! i forgot the definition.... >.<

  14. anonymous
    • 5 years ago
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    can anyone graph it and send me a link so i can see how it should look?

  15. anonymous
    • 5 years ago
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    sorry I wrong page

  16. anonymous
    • 5 years ago
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    u have grid paper?

  17. anonymous
    • 5 years ago
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    no i do it on the computer

  18. anonymous
    • 5 years ago
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    u need rewrite to slope intercept than draw grap on the grid paper,

  19. anonymous
    • 5 years ago
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    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.

  20. anonymous
    • 5 years ago
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    x+y=7 , y= -x +7 x-y=3 , y = x-3

  21. anonymous
    • 5 years ago
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    let me send u grap , u will see intercept at (5,2)

  22. anonymous
    • 5 years ago
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  23. anonymous
    • 5 years ago
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    sorry y=2 on the grap I write y =3

  24. anonymous
    • 5 years ago
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  25. anonymous
    • 5 years ago
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    Isn't it a bit more productive to show this person the way to the anser instead of spoonfeeding him?

  26. anonymous
    • 5 years ago
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    Answer.

  27. anonymous
    • 5 years ago
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    Answer?

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