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janessia

x - y = 9 x + 2y = -6 Choose one answer. a. (5,4) b. (4,-5) c. (4,5) d. (-5,-4)

  • one year ago
  • one year ago

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  1. abb50
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    x - y = 9 x + 2y = -6 subtract the two equations simulataneously -3y = 15 y = -5 now solve for x

    • one year ago
  2. apoorvk
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    solve these two equations! subtract the whole of the first equation from the second! the 'x' gets eliminated, and you can find out 'y' then. And use this value of 'y' to get 'x'!

    • one year ago
  3. waterineyes
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    Subtract the two equations what you got??

    • one year ago
  4. janessia
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    ohk hold on

    • one year ago
  5. waterineyes
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    Sure, take your time..

    • one year ago
  6. janessia
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    -3y=-15?

    • one year ago
  7. janessia
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    -3y=15

    • one year ago
  8. abb50
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    -3y = 15 is right. now solve for y

    • one year ago
  9. abb50
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    you do that by dividing both sides by the coefficient of y

    • one year ago
  10. waterineyes
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    Hi abb50.. She is a good girl.. She will calculate on her own.. Do not need to tell her...

    • one year ago
  11. abb50
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    i didn't tell her anything

    • one year ago
  12. waterineyes
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    Dividing both sides by......................etc etc..

    • one year ago
  13. abb50
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    it was just a hint. is that not allowed?

    • one year ago
  14. waterineyes
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    Let her do on her own.. if not then you surely can give hints...

    • one year ago
  15. abb50
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    okay sorry

    • one year ago
  16. galipso
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    lol what? abb50 you have nothing to apologize for.

    • one year ago
  17. waterineyes
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    I do not want to hear sorry from you abb50.. Even I am sorry if I talked rude to you...

    • one year ago
  18. janessia
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    thnx both of u guys i got the y but i got 14 for the x which im sure is wrong

    • one year ago
  19. janessia
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    @abb50 u were helping nd thnx i got -5 anyway even without u giving it to me lol i didnt even realized u gave me the answer thats how dumb i am!

    • one year ago
  20. janessia
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    nd thanx @waterineyes for all ur help!!! i am learning a lot from u!!!

    • one year ago
  21. waterineyes
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    No need to say thanks... See, from first equation: x - y = 9 So here, x = 9 + y put y: x = 9 + (-5) Now solve for x...

    • one year ago
  22. janessia
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    ohk hold on

    • one year ago
  23. janessia
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    4!

    • one year ago
  24. janessia
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    so the answer is b?

    • one year ago
  25. galipso
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    That's the one with x=4 and y=-5 ;)

    • one year ago
  26. janessia
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    yes!

    • one year ago
  27. janessia
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    thnx all of u!!

    • one year ago
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