Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

stephcanie

  • 3 years ago

Solve the system using elimination. 2x+3y=6 5x-y=-19

  • This Question is Closed
  1. Lukecrayonz
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    To eliminate one of the variables, make one of equations have equal variables just negative and positive. To do this, multiply the second equation by 3 to get -y to -3y, but you must multiply the whole equation. 15x-3y=-57 2x+3y=6

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

    Add the equations together now! 15x+2x=17x -57+6=-51 17x=-51 x=-3

  3. Lukecrayonz
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Whoops, made a mistake.

  4. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    First equal one of the variable in both of the equations |dw:1352832467734:dw|

  5. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1352832598245:dw|

  6. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @ajprincess m i right becoz i m nt ure about this

  7. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    sure *

  8. stephcanie
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks guys this really helped.

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

    When u multiply the second equation by 2 u get 10x-2y=-38. Let us name that as equation (3). The resultant equation u get by multiplying the first equation by 5 is 10x+15y=30. Let us name this equation(4). Subtracting (3) from (4) (4)-(30=> 10x+15y-10x+2y=30-(-38) 17y=68 y=68/17 y=4

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

    @jiteshmeghwal9 guess u forgot abt the negative sign in front of 38.

  11. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oops... yeah sorry

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

    that's k.:) that happens sometimes to me too.:)

  13. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    U really are a very intelligent OS user :)

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

    Thanx for the compliment.:)

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

    @stephcanie do u get t?

  16. jiteshmeghwal9
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No need of thanx.... u really deserve it :)

  17. 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