A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Solve the system of equations algebraically. Please show the steps to your solution. 8x+2y=-2 y=-5x+1

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

    Substitute the expression for y from the second equation into the first equation. You can then solve for x. Then substitute that value for x into the second equation to solve for y,

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

    can you show me?

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

    \[8x+2\left( -5x+1 \right)=-2\] Expand, collect up like terms and solve for x. Can you do thiat?

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

    x=2

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

    Excellent. Now substitute x=2 into either of the given equations and solve for y. Hint: the second equation looks like it's easier to work with.

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

    osprey is saying use y=-5x+1 with x=2

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

    so y=-5*2+1?

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

    Evaluate\[y=-5\left( 2 \right)+1\]

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

    That's right. What do you get?

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

    y=-9

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

    Terrific. That's your answer! Well done.

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

    thank yo u

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

    The solution x=2, y=-9 works for both given equations. Pretty cool, eh? You're welcome.

  14. 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.