EmmaH
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
Delete
Share
This Question is Closed
Mertsj
Best Response
You've already chosen the best response.
0
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?
EmmaH
Best Response
You've already chosen the best response.
0
so find x in the second equation
Mertsj
Best Response
You've already chosen the best response.
0
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.
EmmaH
Best Response
You've already chosen the best response.
0
what do you mean this is the prob i copoy and pasted it
Mertsj
Best Response
You've already chosen the best response.
0
Ok. Solve the first equation for x and choose that answer.
EmmaH
Best Response
You've already chosen the best response.
0
x=6-y?
EmmaH
Best Response
You've already chosen the best response.
0
x-y=6 then i did this x=6-y
Mertsj
Best Response
You've already chosen the best response.
0
Which one is the first equation?
EmmaH
Best Response
You've already chosen the best response.
0
x + 2y = 9 that is the firts equation right?
EmmaH
Best Response
You've already chosen the best response.
0
@Mertsj
uri
Best Response
You've already chosen the best response.
0
@satellite73 @Hero help her :3
Jenn777
Best Response
You've already chosen the best response.
1
wheres blondie? :)
EmmaH
Best Response
You've already chosen the best response.
0
i dont know cant anyone help me? :'(
EmmaH
Best Response
You've already chosen the best response.
0
x+9-2y and x=6-y
EmmaH
Best Response
You've already chosen the best response.
0
?
shaik0124
Best Response
You've already chosen the best response.
1
how can i help u
EmmaH
Best Response
You've already chosen the best response.
0
haha that question up there at the very top ^^
shaik0124
Best Response
You've already chosen the best response.
1
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
Best Response
You've already chosen the best response.
1
the option u gave is for substituting in second equation not in first
shaik0124
Best Response
You've already chosen the best response.
1
shall i show the work
EmmaH
Best Response
You've already chosen the best response.
0
wait what im a littke confused and yes id like to see how you got it please
EmmaH
Best Response
You've already chosen the best response.
0
the third one is the same
shaik0124
Best Response
You've already chosen the best response.
1
|dw:1358876144658:dw|
shaik0124
Best Response
You've already chosen the best response.
1
now|dw:1358876228614:dw|
shaik0124
Best Response
You've already chosen the best response.
1
9=6+3y
9-6=6-6+3y
3=3y
y=1 now substitute in any one equation u will get x value
EmmaH
Best Response
You've already chosen the best response.
0
is the answer 9-2y?
shaik0124
Best Response
You've already chosen the best response.
1
yes
EmmaH
Best Response
You've already chosen the best response.
0
ok:) thank you all!:)
EmmaH
Best Response
You've already chosen the best response.
0
to me it was lol