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

Kaylaaa

PLEASE HELPPPPP

  • one year ago
  • one year ago

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

    6.02] and [6.03] Part 1: Solve the following system of equations. Please show your work to receive full credit. x - y = 16 2x + y = 2 Part 2: Explain which method you chose to solve the system and why you felt it was the best choice.

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

    First: x = 16 - y 2x + y = 2 Then you take the value of x that you found ( 16 -y ) and replace it by x on the second equation: x = 16 - y 2(16-y) + y = 2 So x = 16 - y 32 - 2y + y = 2 And x = 16 - y -y = -30 => y = 30 Thus x = 16 - 30 = -14

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

    This is a simple method of direct subsitution. You could use matrices, but due to its simplicity its not worth the effort.

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

    Oh my gosh thank you soooooooooooooooooooooooo much.!!

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

    my bad. the first equation should read x = 16+ y. You can adjust acoordingly however, the rest of the maths are correct. The end result is y = -10, x = 6

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

    hi kaylaaa add both the equations you'll get 3y=18 y=6 and now substitute back value of y in any one of the equation to get the value of x say , i choose 2nd one 2x=2-6 x=-2 y=6 :) the method i choose to solve is called elimination method where you try to reduce one of the variable by multiplying with some no., you can choose substitution and multiplication method also..:)

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

    THank you so much.! (:

    • 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.