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EmmaH

  • 3 years ago

SOMEONE HELP ME PLEEASE!? When solving the system x + 2y = 9 and x - y = 6, which expression could be substituted for x in the first equation? 9 - x y - 9/2 9 - 2y 1/2 y + 9

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  1. Mertsj
    • 3 years ago
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    The problem says you must substitute for x in the first equation. That means you must get a value for x from the second equation so you have something to substitute. Are you with me so far?

  2. EmmaH
    • 3 years ago
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    so find x in the second equation

  3. Mertsj
    • 3 years ago
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    That's what your problem says but that is not one of your answer choices so I think you need to repost the problem EXACTLY as it is stated.

  4. EmmaH
    • 3 years ago
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    what do you mean this is the prob i copoy and pasted it

  5. Mertsj
    • 3 years ago
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    Ok. Solve the first equation for x and choose that answer.

  6. EmmaH
    • 3 years ago
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    x=6-y?

  7. EmmaH
    • 3 years ago
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    x-y=6 then i did this x=6-y

  8. Mertsj
    • 3 years ago
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    Which one is the first equation?

  9. EmmaH
    • 3 years ago
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    x + 2y = 9 that is the firts equation right?

  10. EmmaH
    • 3 years ago
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    @Mertsj

  11. uri
    • 3 years ago
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    @satellite73 @Hero help her :3

  12. Jenn777
    • 3 years ago
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    wheres blondie? :)

  13. EmmaH
    • 3 years ago
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    i dont know cant anyone help me? :'(

  14. EmmaH
    • 3 years ago
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    x+9-2y and x=6-y

  15. EmmaH
    • 3 years ago
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    ?

  16. shaik0124
    • 3 years ago
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    how can i help u

  17. EmmaH
    • 3 years ago
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    haha that question up there at the very top ^^

  18. shaik0124
    • 3 years ago
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    see u can substitute 3rd option i.e, 9-2y in second euation i.e, x-y=6 what u wrote in the questionis wrong

  19. shaik0124
    • 3 years ago
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    the option u gave is for substituting in second equation not in first

  20. shaik0124
    • 3 years ago
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    shall i show the work

  21. EmmaH
    • 3 years ago
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    wait what im a littke confused and yes id like to see how you got it please

  22. EmmaH
    • 3 years ago
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    the third one is the same

  23. shaik0124
    • 3 years ago
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    |dw:1358876144658:dw|

  24. shaik0124
    • 3 years ago
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    now|dw:1358876228614:dw|

  25. shaik0124
    • 3 years ago
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    9=6+3y 9-6=6-6+3y 3=3y y=1 now substitute in any one equation u will get x value

  26. EmmaH
    • 3 years ago
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    is the answer 9-2y?

  27. shaik0124
    • 3 years ago
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    yes

  28. EmmaH
    • 3 years ago
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    ok:) thank you all!:)

  29. EmmaH
    • 3 years ago
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    to me it was lol

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