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

Question

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

mertsj · Answer

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 · Answer

so find x in the second equation

mertsj · Answer

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.

anonymous · Answer

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

mertsj · Answer

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

anonymous · Answer

x=6-y?

anonymous · Answer

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

mertsj · Answer

Which one is the first equation?

anonymous · Answer

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

anonymous · Answer

@Mertsj

uri · Answer

@satellite73 @Hero help her :3

anonymous · Answer

wheres blondie? :)

anonymous · Answer

i dont know cant anyone help me? :'(

anonymous · Answer

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

anonymous · Answer

?

shaik0124 · Answer

how can i help u

anonymous · Answer

haha that question up there at the very top ^^

shaik0124 · Answer

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 · Answer

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

shaik0124 · Answer

shall i show the work

anonymous · Answer

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

anonymous · Answer

the third one is the same

shaik0124 · Answer

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