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

Steph_Rawr352 Group Title

Solve the following system of equations. x + 3y + 2z = –16 2x – y + 2z = –15 2x – 2y – z = 1

  • 2 years ago
  • 2 years ago

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

    x=-3 y=-1 z=-5

    • 2 years ago
  2. JAVIER34 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    First step is eliminate the Z x + 3y + 2z = -16 2x - y + 2z = -15 ------------------------------ (-) -x + 4y = -1 ----------------------------------------… (1) x + 3y + 2z = -16 x + 3y + 2z = -16 2x - 2y - z = 1 x2 4x - 4y - 2z = 2 ---------------------------------- (+) 5x- y = - 14 ----------------------------------------… (2)

    • 2 years ago
  3. JAVIER34 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Second step is eliminate the Y (1) and (2) -x + 4y = -1 -x + 4y = -1 5x - y = -14 x 4 20x - 4y = -56 ------------------------ (+) -19x = -57 x = 57/19 ----------------------------------------… (3) After get the X value, put in equation (2) to get the Y value 5x - y = -14 - y = - 14 -5x y = 14 + 5 x Next after you get the X and Y, put in your first equation x + 3y + 2z = -16 2z = -16 -x-3y z = -8 - 1/2 x - 3/2y then you get the Z.... sorry not much time to calculate the rest for you :)

    • 2 years ago
  4. Steph_Rawr352 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thanks you guys c:

    • 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.