- anonymous

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

- chestercat

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- Mertsj

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?

- anonymous

so find x in the second equation

- Mertsj

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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## More answers

- anonymous

what do you mean this is the prob i copoy and pasted it

- Mertsj

Ok. Solve the first equation for x and choose that answer.

- anonymous

x=6-y?

- anonymous

x-y=6 then i did this x=6-y

- Mertsj

Which one is the first equation?

- anonymous

x + 2y = 9 that is the firts equation right?

- anonymous

- uri

@satellite73 @Hero help her :3

- anonymous

wheres blondie? :)

- anonymous

i dont know cant anyone help me? :'(

- anonymous

x+9-2y and x=6-y

- anonymous

?

- shaik0124

how can i help u

- anonymous

haha that question up there at the very top ^^

- shaik0124

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

- shaik0124

the option u gave is for substituting in second equation not in first

- shaik0124

shall i show the work

- anonymous

wait what im a littke confused and yes id like to see how you got it please

- anonymous

the third one is the same

- shaik0124

|dw:1358876144658:dw|

- shaik0124

now|dw:1358876228614:dw|

- shaik0124

9=6+3y
9-6=6-6+3y
3=3y
y=1 now substitute in any one equation u will get x value

- anonymous

is the answer 9-2y?

- shaik0124

yes

- anonymous

ok:) thank you all!:)

- anonymous

to me it was lol

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