A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Systems of Equations, please help =) Solve without matrix 5x-y+z=4; x+2y-2=5; 2x+3y-3=5 I have the answer, but have tried multiple time and cannot get it.

  • This Question is Closed
  1. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    System of three equations? :( Oh boy these are not fun lol

  2. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh two of them only involve x and y! yay! :)

  3. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Start there, with the x/y equations, find a solution for x or y.

  4. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\large\rm x+2y-2=5\]\[\large\rm 2x+3y-3=5\]Let's get these into `standard form`: In which only x's and y's appear on the left sides of the equations.

  5. zepdrix
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So we'll add 2, and 3, respectively, ya?\[\large\rm x+2y=7\]\[\large\rm 2x+3y=8\]Ok with that step? :o

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes. Thank you! So sorry I got distracted.

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

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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.