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

Discord Group Title

y - 2x = 10 y = 4x + 8 Solve by substitution.

  • 2 years ago
  • 2 years ago

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

    well, you know that y = 4x + 8, so you just substitute that for y in the first equation

    • 2 years ago
  2. rainbow22 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    y=2x+10 2x+10=4x+8 solve

    • 2 years ago
  3. rainbow22 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    2x+2=4x 2x=2 x=1

    • 2 years ago
  4. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    do you know what to do now?

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

    Actually can do do it again. I'm still lost.

    • 2 years ago
  6. rainbow22 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    first you would find y in terms of x

    • 2 years ago
  7. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    it would be (4x + 8) - 2x = 10

    • 2 years ago
  8. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    so you combine like terms first

    • 2 years ago
  9. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    4x and -2x being like terms

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

    How do you get -2x?

    • 2 years ago
  11. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    because in our equation, it says (4x + 8) - 2x = 10. minus 2x is the same as -2x

    • 2 years ago
  12. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    so to combine 4x and -2x, it would be 4x - 2x, which is...

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

    Oh man. I wrote that backwards.

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

    Its y = 2x - 10

    • 2 years ago
  15. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what? can you write the whole question correct? :/

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

    Its y = 2x - 10 y = -4x + 8

    • 2 years ago
  17. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    oh

    • 2 years ago
  18. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok, so it would be 2x - 10 = -4x + 8

    • 2 years ago
  19. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    now you have to add 4x to both sides

    • 2 years ago
  20. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    wait.

    • 2 years ago
  21. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    nvm, continue doing that

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

    Alright thanks. I understand now.

    • 2 years ago
  23. AriPotta Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    oh ok.

    • 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.