## janessia 3 years ago x - y = 9 x + 2y = -6 Choose one answer. a. (5,4) b. (4,-5) c. (4,5) d. (-5,-4)

1. abb50

x - y = 9 x + 2y = -6 subtract the two equations simulataneously -3y = 15 y = -5 now solve for x

2. apoorvk

solve these two equations! subtract the whole of the first equation from the second! the 'x' gets eliminated, and you can find out 'y' then. And use this value of 'y' to get 'x'!

3. waterineyes

Subtract the two equations what you got??

4. janessia

ohk hold on

5. waterineyes

6. janessia

-3y=-15?

7. janessia

-3y=15

8. abb50

-3y = 15 is right. now solve for y

9. abb50

you do that by dividing both sides by the coefficient of y

10. waterineyes

Hi abb50.. She is a good girl.. She will calculate on her own.. Do not need to tell her...

11. abb50

i didn't tell her anything

12. waterineyes

Dividing both sides by......................etc etc..

13. abb50

it was just a hint. is that not allowed?

14. waterineyes

Let her do on her own.. if not then you surely can give hints...

15. abb50

okay sorry

16. galipso

lol what? abb50 you have nothing to apologize for.

17. waterineyes

I do not want to hear sorry from you abb50.. Even I am sorry if I talked rude to you...

18. janessia

thnx both of u guys i got the y but i got 14 for the x which im sure is wrong

19. janessia

@abb50 u were helping nd thnx i got -5 anyway even without u giving it to me lol i didnt even realized u gave me the answer thats how dumb i am!

20. janessia

nd thanx @waterineyes for all ur help!!! i am learning a lot from u!!!

21. waterineyes

No need to say thanks... See, from first equation: x - y = 9 So here, x = 9 + y put y: x = 9 + (-5) Now solve for x...

22. janessia

ohk hold on

23. janessia

4!

24. janessia

25. galipso

That's the one with x=4 and y=-5 ;)

26. janessia

yes!

27. janessia

thnx all of u!!

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