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

lak

Solve the system using the substitution method: x+2y=6 3x-2y=2

  • one year ago
  • one year ago

  • This Question is Open
  1. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    so the substitution method states that you need to subsitute one variable for another. Lets substitue for y, how do we do this? Solve for y with ethier equation.

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

    i don't know!

    • one year ago
  3. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    I didnt ask you a questions lol I told u to solve for y on one of those equations I wont help if you dont try

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

    i've been sitting here for like half an hour looking through the steps on how to do it

    • one year ago
  5. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    take one of those equations and solve for y, you have done this before.

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

    I did, but i ended up with -4y= -3x+2....and that's not right

    • one year ago
  7. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    it would be -2y=-3x+2 where did u get the 4?

    • one year ago
  8. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    also thats not finished you need to get the 2 away from the y

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

    i have know idea and ok

    • one year ago
  10. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    3x-2y=2 you subtract 3x -2y=-3x+2 then what?

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

    3x-2y=2?

    • one year ago
  12. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    that is the original equation you divide both sides by 2 to get y by itself just like we did on that other paper

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

    3x+y=1

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

    i meant -1

    • one year ago
  15. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    0.o no were at -2y=-3x+2 if you divide -2 you get y=3/2x+1

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

    that's what i had at first, but then you said the original equation was something different

    • one year ago
  17. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    I did not and you never had that you had 3x+y=1 you still need to solve for y

    • one year ago
  18. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    now that you have solved for y uou can plug that equation in for the y in your second equation

    • one year ago
  19. teague19
    Best Response
    You've already chosen the best response.
    Medals 0

    x+2y=6 3x-2y=2 im gonna use the top one becuase its easier but x+2y=6 -x -x 2y=-x+6 /2 /2 y=(-1/2)x+3 now take the other equation solve for y and SUBSTITUTE the Y;s y=(-1/2)x+3 then solve for 3x-2y=2 -2y=-3x+2 /-2 /-2 y=(3/2)x+1 y=y (3/2)x+1 = (-1/2)x+3 (4/2)x=2 *2 *2 4x=4 x=1

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

    thanks

    • one year 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.