Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Steph_Rawr352

  • 2 years ago

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

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

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

  2. JAVIER34
    • 2 years ago
    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)

  3. JAVIER34
    • 2 years ago
    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 :)

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

    thanks you guys c:

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

    • 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.