## EmmaH 2 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

1. 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?

2. EmmaH

so find x in the second equation

3. 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.

4. EmmaH

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

5. Mertsj

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

6. EmmaH

x=6-y?

7. EmmaH

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

8. Mertsj

Which one is the first equation?

9. EmmaH

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

10. EmmaH

@Mertsj

11. uri

@satellite73 @Hero help her :3

12. Jenn777

wheres blondie? :)

13. EmmaH

i dont know cant anyone help me? :'(

14. EmmaH

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

15. EmmaH

?

16. shaik0124

how can i help u

17. EmmaH

haha that question up there at the very top ^^

18. 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

19. shaik0124

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

20. shaik0124

shall i show the work

21. EmmaH

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

22. EmmaH

the third one is the same

23. shaik0124

|dw:1358876144658:dw|

24. shaik0124

now|dw:1358876228614:dw|

25. shaik0124

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

27. shaik0124

yes

28. EmmaH

ok:) thank you all!:)

29. EmmaH

to me it was lol