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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

Mathematics
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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?
so find x in the second equation
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.

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Other answers:

what do you mean this is the prob i copoy and pasted it
Ok. Solve the first equation for x and choose that answer.
x=6-y?
x-y=6 then i did this x=6-y
Which one is the first equation?
x + 2y = 9 that is the firts equation right?
  • uri
@satellite73 @Hero help her :3
wheres blondie? :)
i dont know cant anyone help me? :'(
x+9-2y and x=6-y
?
how can i help u
haha that question up there at the very top ^^
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
the option u gave is for substituting in second equation not in first
shall i show the work
wait what im a littke confused and yes id like to see how you got it please
the third one is the same
|dw:1358876144658:dw|
now|dw:1358876228614:dw|
9=6+3y 9-6=6-6+3y 3=3y y=1 now substitute in any one equation u will get x value
is the answer 9-2y?
yes
ok:) thank you all!:)
to me it was lol

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