## cljay281 3 years ago how do you determine what method to use? please show your steps on solving this for me –y + 3x +6 y=–6x +125

1. across

Use the method of substitution.

2. across

You could also just add the equations and go from there.

3. across

Or you could use a 2 x 2 matrix and solve by performing row operations.

4. across

Or you could also... (you get the idea)

5. FoolForMath

lol, cramers rule ?

6. FoolForMath

7. fewscrewsmissing

You could also use the OpenStudy Method. Or you could use WolframAlpha.

8. FoolForMath

yes, but I like Gaussian elimination more.

9. fewscrewsmissing

Yeah but you're smart, so shut up :-P

10. slaaibak

+1 For gauss elimination. Everybody loves reduced row echelon forms!

11. FoolForMath

Lol, of course you will end up calculating the rank too.

12. across

If you are interested, you could look up the saifoo.khan™ package which comes with the OpenStudy™ LazyStudentsInAHurry™ subscription. You are guaranteed to obtain an answer within a second after posting it. Copyright © 2012 - 3012 All Rights Reserved

13. FoolForMath

hahaha

14. slaaibak

across, it's only valid for this year. we all know the world is ending in 2012.

15. fewscrewsmissing

Haha. The Premium Version comes with random, unrelated commentary from fewscrewsmissing and friends.

16. slaaibak

^lol

17. FoolForMath

btw no body noticed that given system of equations are incorrect so none of our rules are applicable.

18. fewscrewsmissing

I was too busy providing random, unrelated comments.

19. slaaibak

First one to find the = wins

20. FoolForMath

slaaibak, don't you have escape ark tickets ? http://escapeearth2012.com/

21. across

Sadly, there are idiots out there who fall for that.

22. slaaibak

fool, you underestimate me, who do you think gave them the idea?! across, in 12 months, we'll see who will be laughing!

23. fewscrewsmissing

I win, slaaibak.

24. slaaibak

well played, sir

25. across

I have a fun OS idea: We should play a hide and seek game.

26. FoolForMath

haha :D

27. slaaibak

How will it work?

28. FoolForMath

and how will that work @across

29. across

But it would not work since OpenStudy™ has a strong SuperStalk™ department up.

30. across

31. slaaibak

I believe stalking is a skill. And it requires perseverance.

32. fewscrewsmissing

I meant to say earlier across, nice curtains.

33. fewscrewsmissing

I don't know WHAT they're teaching the kids in school these days.

34. FoolForMath

lol Yes we are happy people :D

35. slaaibak

The worst: Facebook. Oh my word, that shorthand. I can't take it. I never thought apostrophes were so difficult to master.

36. fewscrewsmissing

Oh don't get me started. I get a message from anyone under the age of about 18, and it takes a good ten minutes to decipher. You can't tell me that coming up with such creative ways to abuse the English language is somehow more time-efficient than simply using the correct spelling and grammar.

37. across

Curtains?

38. Mr.Math

Haha, this is one of the funniest threads ever!

39. fewscrewsmissing

They taught me a) How to spell b) How to conduct myself in public and e) Not the alphabet.

40. slaaibak

He can see into your house. He is a stalker.

41. fewscrewsmissing

@across, it was a reference to the stalking ;) Nice car you've got there.

42. Mr.Math

She's German; Germans make the best cars.

43. across

cljay281, I want to see you pass your test.

44. across

Mercedes all the way!

45. fewscrewsmissing

"cljay281, I want to see you pass your test." Funniest. Comment. Ever.

46. slaaibak

NO. Audi>>>

47. Mr.Math

Yep, Audi!

48. fewscrewsmissing

I mean um... good luck to you cljay281, I wish you well in your future studies.

49. Mr.Math

FSM: You're a superhero!! Congrats! :D

50. slaaibak

hahaha. I so badly wanted to stay a champion. It just sounds so epic!

51. fewscrewsmissing

Cheers MRM! :-D It's all thanks to random threads like this! :-P I think I've provided usable answers to maybe 2 questions on the entirety of OS.

52. heisenberg

Alrighty friends, let's not let this thread get out of control.

53. Mr.Math

Lol, I think you're a great help to many members here.

54. fewscrewsmissing

55. Mr.Math

Wow, this mod is kinda scary, I'm outta here! *scared*

56. fewscrewsmissing

I'm uncertain of him. Ba-dum, tsshh!

57. slaaibak

Feels like you're at a party and the police stops it :( Nah kidding, I'm done here too!

58. across

Sure thing. clay, if what you meant was this: –y=+3x+6, y=–6x+125, Then you could do this: 0=-3x+131 and solve for x.