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anonymous

  • 4 years ago

Find the point of intersection of the pair using the method of elimination x-y = 3 2x + y = 3

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  1. Mertsj
    • 4 years ago
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    If you just add the two equations, the y will be eliminated. Can you do that?

  2. anonymous
    • 4 years ago
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    I don't understand what the question is exactly asking

  3. KatrinaKaif
    • 4 years ago
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    You have to solve for x and y, concluding with an ordered pair of (x,y)

  4. karatechopper
    • 4 years ago
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    well elimination is where you eliminate one of the variables to be able to solve the equation

  5. Mertsj
    • 4 years ago
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    Ok Katrina and karate will help you.

  6. anonymous
    • 4 years ago
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    Can anybody solve it for me? I don't really get what you're trying to say....

  7. KatrinaKaif
    • 4 years ago
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    Ok. One min. My explanations will be followed.

  8. myininaya
    • 4 years ago
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    add the equations together (x+2x)+(-y+y)=(3+3) that should help

  9. KatrinaKaif
    • 4 years ago
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    Your equations are: x - y = 3 2x + y = 3 In both equations "-y" from the first equation, and "+y" from the second equation cancel each other out. Understood?

  10. karatechopper
    • 4 years ago
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    therefore lleaving the equation to be x=3 2x=3

  11. KatrinaKaif
    • 4 years ago
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    Since they cancel each other, the equation becomes: 3x = 6

  12. KatrinaKaif
    • 4 years ago
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    Now lets solve for x. Divide both sides for 3, which concludes us with the answer x = 2 Since we have solved for x, our ordered pair would be (2,y)

  13. karatechopper
    • 4 years ago
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    now you take that 2 and plug it into one of the equations

  14. karatechopper
    • 4 years ago
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    im going to take the x-y=3 equation so i plug 2 in for x 2-y=3 subtract 2 on both sides -y=1 divide by -1 on both sides y=1

  15. KatrinaKaif
    • 4 years ago
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    Now, use what you have found as being x= 2, and plug it into your original equation. Lets plug "2" in the position of "x" in equation one: x - y = 3 (2) - y = 3 Bring the 2 to the "other side" but substracting it from 3 -y = 3 - 2 -y = 1 Divide by -1 and your answer is y = -1

  16. KatrinaKaif
    • 4 years ago
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    Now since you have solved x and y, your coordinates of intersection is (2, - 1)

  17. karatechopper
    • 4 years ago
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    woops i messed up make that be -1

  18. karatechopper
    • 4 years ago
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    nice work kat!;) medal timne!!!

  19. KatrinaKaif
    • 4 years ago
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    That will be your final answer. Any questions?

  20. anonymous
    • 4 years ago
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    Thank you so much. God bless <3

  21. Hero
    • 4 years ago
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    KC and KK helping people with math? Has the world turned upside down?

  22. KatrinaKaif
    • 4 years ago
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    Anytime Waleed =)

  23. karatechopper
    • 4 years ago
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    @hero what wrong with that? i have always helped people with the math tht i know..

  24. Hero
    • 4 years ago
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    It's when both of you do it together....that's what makes it strange.

  25. karatechopper
    • 4 years ago
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    ???

  26. karatechopper
    • 4 years ago
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    its called TEAMWORK!

  27. Hero
    • 4 years ago
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    i'm a one man team.

  28. karatechopper
    • 4 years ago
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    ok kool;)

  29. anonymous
    • 4 years ago
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    the more the merrier :D

  30. karatechopper
    • 4 years ago
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    :D

  31. Hero
    • 4 years ago
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    will only be happier

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is replying to Can someone tell me what button the professor is hitting...

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