A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ccchristian1

  • one year ago

A student is trying to solve the system of two equations given below: Equation P: y + z = 6 Equation Q: 8y + 7z = 1 Which of these is a possible step used in eliminating the y-term? (y + z = 6) ⋅ −8 (y + z = 6) ⋅ 7 (8y + 7z = 1) ⋅ 7 (8y + 7z = 1) ⋅ 8

  • This Question is Closed
  1. ccchristian1
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @pooja195

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

    a

  3. pooja195
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    Opposites cancel

  4. ccchristian1
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so a ?

  5. pooja195
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    yes -.-

  6. ccchristian1
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    okay thanks

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

    It's a because you multiply the first equation by -8 which cancels out y

  8. pooja195
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    http://www.basic-mathematics.com/elimination-method.html more on that...

  9. 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.