Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Loujoelou

  • 3 years ago

If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the second equation. 3x – 5y + z = 12 x + 6y – z = –4 2x – 5y – 2z = –8 A) 4x + y = 8 –17y = 0 B) 2x – 11y = 16 4x + 7y = –16 C) –23y + 4z = 24 –17y = 0 D) 13y – 2z = 24 7y – 4z = 0

  • This Question is Closed
  1. waterineyes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    What do you get if you find x in second equation??

  2. Loujoelou
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I get x=-6y+z-4

  3. waterineyes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Now plug this value in first and third equation separately and tell me what you got..

  4. Loujoelou
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    I got -23y+4z=24 & -17y=0 which means it's C. :) Tyvm @waterineyes Never realized the question was so easy! :)

  5. waterineyes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Welcome dear.. And here is one medal for you because the question is only solved by you..

  6. Loujoelou
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Ty @waterineyes

  7. waterineyes
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(\huge \checkmark \)

  8. 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