Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

hreeg97 Group Title

Please help me!!!! solve the system using elimination x+ y + +z =1 2x-y+2x=-5 -x+2y-z = 4

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Hero Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    [1 1 1 1] [2 -1 2 -5] [-1 2 -1 4] Set up matrix

    • 2 years ago
  2. hreeg97 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i have to use elimination

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

    Good luck with that

    • 2 years ago
  4. hreeg97 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    i am so confused on how to do these can someone please help!!!

    • 2 years ago
  5. lainey.ressler Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    x+ y +z =1 2x-y+2z=-5 -x+2y-z = 4 x + y+z=1 -x+2y-z=4 3y = 5 2x-y+2z=-5 (-x+2y-z=4)2 -2x -4y-2z = 8 -5y = 3 3y = 5 -5y = 3 -2y = 8 y = -4 ^^^that's your the y part of the ordered triplet, now you just need to find the x and z values

    • 2 years ago
  6. hreeg97 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks sooooooooo...... much

    • 2 years ago
  7. hreeg97 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    could you help me with one more?

    • 2 years ago
  8. lainey.ressler Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    x+ y + +z =1 2x-y+2x=-5 -x+2y-z = 4 x+ y +z =1 2x-y+2z=-5 3x+3z =-4 (2x-y+2z=-5)2 4x-2y+4z=-10 -x+2y-z = 4 3x+3z=-6 3x+3z=-4 (3x+3z=-6)-1 -3x-3z=6 0 does not equal 2, so there is no solution for the problem

    • 2 years ago
    • Attachments:

See more questions >>>

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.