Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

photoshot17

  • 3 years ago

Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y). x - 2y = -1 2x - y = 4

  • This Question is Closed
  1. photoshot17
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x - 2y = -1 2x - y = 4

  2. SuperHooper
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Plug in a made up value for one of the variables to figure out what the other would be to make the equation valid. For example, if you set y to equal 1, then x has to equal 1, because 1 minus 2 equals -1.

  3. photoshot17
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    need help fast

  4. SuperHooper
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    if y equaled 2, x would have to equal 5 to satisfy the equations parameters, and those x and y values you achieve are your coordinates.

  5. Alexis1994_13
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x=11 , y=6.

  6. photoshot17
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    11,6 is not the answer

  7. th88hansen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    rewrite the first to x = -1+2y and inset in the second 2(-1+2y)-y=4 and solve -2+4y-y = 4 -2+3y=4 3y = 4+2 y = 6/2 y=3 x = -1+2y x=-1+2*3 x = 5

  8. photoshot17
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what is the answer?

  9. th88hansen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x = 5, y = 3

  10. photoshot17
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    5,3 is not the answer

  11. th88hansen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sry 6/3 y = 2 x = 3

  12. th88hansen
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    rewrite the first to x = -1+2y and inset in the second 2(-1+2y)-y=4 and solve -2+4y-y = 4 -2+3y=4 3y = 4+2 y = 6/3 y=2 x = -1+2y x=-1+2*2 x = 3

  13. jhonyy9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x-2y=-1 /2 2x-y=4 2x-4y=-2 2x-y=4 ---------- -- -3y=-6 y=-6/-3= 2 than y=2 --- 2x-2=4 --- 2x=6 --- x=6/2 =3 x=3 y=2

  14. Not the answer you are looking for?
    Search for more explanations.

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

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

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.