Question

Can someone please help me with this. I'm beyond desperate at this point.

Use the elimination method to solve the following system of equations.2x - y + z = -32x + 2y + 3z = 23x - 3y - z = -4


(-1, -3, -2)

(1, -3, -2)

(1, 3, -2)

(1, 3, 2)

Answer 1

only the last equation is equal to a number?

Answer 2

yes

Answer 3

My apologies for not breaking it down, that's how it comes to me

Answer 4

So far, yes, I'm writing this down so I can refer back to it

Answer 5

do you know matrix algebra?

Answer 6

@richyw Not that well, but if I were to look in a book and find out the gist of it, then yes

Answer 7

keep listining to cambell for now, but look it up after!

Answer 8

@richyw Sure thing :)

Answer 9

http://i.imgur.com/CMgMz.gif

Answer 10

she bailed.

Answer 11

wait I didn't read what campbel was saying. This is wrong.

Answer 12

\[2x - y + z = -32x + 2y + 3z = 23x - 3y - z = -4\] gives this system of equations\[2x-y+z=-4\]\[-32x+2y+3z=-4\]\[23x-3y-z=-4\]

Answer 13

no they are not all equal to -4

Answer 14

or are they?

Answer 15

the original post shows them all =-4, but it might have been a copy and pasting error. But what is written IS what I just showed.

Answer 16

does not seem correct

Answer 17

But your initial system is incorrect.

Answer 18

i am assuming it was a typo and will just leave though. but for future warning. What the OP posted implied that they were all equal to -4. Copying and pasting this into wolfram alpha also outputs the answer that I got when I made this assumption!

Answer 19

let's do algebra homework for everyone who posts a semi-coherent question and then logs off.

Answer 20

yup I see that. I am not saying you don't understand it! I was just saying that the OP posted the incorrect question. The answer to the OP question is given here... (and is not one of the answers)

http://www.wolframalpha.com/input/?i=2x+-+y+%2B+z+%3D+-32x+%2B+2y+%2B+3z+%3D+23x+-+3y+-+z+%3D+-4+

Answer 21

We'll call it Open Study and get the government to pay for it.

Answer 22

I'm back, my apologies. My Internet went out for a short amount of time. Let me scroll up to see how far we've gotten.

Answer 23

@Algebraic! I didn't mean to log off, it was my mistake. And that's the way the problem was given to me. No need for bullying.

Answer 24

It makes sense so far, by the way

Answer 25

bullying. is that your response to every situation wherein someone on the internet isn't serving your immediate interests?

Answer 26

@Algebraic! Come again? I have no problem in admitting to my wrongdoing, that is if i am doing wrong. All I did was explain why I suddenly disappeared to the kind people who are helping me solve this problem.

Answer 27

@campbell_st @Algebraic! @richyw See

http://openstudy.com/users/insanelychaotic#/updates/506f29a6e4b060a360ff984a

http://openstudy.com/users/insanelychaotic#/updates/506f244be4b060a360ff9358

http://openstudy.com/users/insanelychaotic#/updates/506f1707e4b060a360ff8890

http://openstudy.com/users/insanelychaotic#/updates/506f0c67e4b060a360ff8217

For similar difficulties.

Answer 28

I'm aware of 'her' past @CliffSedge

Answer 29

Well, ya' know just so anyone interested can get an insight into what's going on.

Enjoy.

Answer 30

thanks

Answer 31

And the problem with needinG feedback in a subject i'm ro

Answer 32

I'm rocky in is

Answer 33

@InsanelyChaotic
nice name.
apropos.

Answer 34

can you post a screen shot of what the question looks like? you are either getting bad questions, or are messing them up when posting them here.

The answer to what you posted, is x=8/27 y=104/27 and -20/27. That IS the ONLY correct answer to the question. Math is not based on interpretation. What you have us DOES have those answers. So it is either you or your homework that is messing up somewhere. A screenshot is needed to determine this.

Answer 35

sorry z=-20/27

Answer 36

@richyw That's part of the problem. That is how I am receiving the questions. The big part of not being able to solve these solutions is not knowing how they are set up from the start.

Answer 37

@Algebraic! Do you honestly think I would care about what you think of a username? Of all things you could say, you point something as minor as a screen name?

Answer 38

u mad?

Answer 39

@campbell_st
This is what the output displays like on my screen. Does it not look like this for you?

Answer 40

No, I am not mad at all, I'm almost too calm right now, but thank you.

Answer 41

post an ss of the page with the problem @InsanelyChaotic

Answer 42

What is incorrectly written? @campbell_st

Answer 43

I realize that. So we need a screen shot of the original question to determine where the error is!

Answer 44

He did screen shot it, this is the original one:

Use the elimination method to solve the following system of equations.2x - y + z = -32x + 2y + 3z = 23x - 3y - z = -4

Answer 45

...

Answer 46

no.

Answer 47

Okay. Are the all equal to-4? Then the question become a lot easier to solve.

Answer 48

the questions as it was given to you. not as you posted it to OS.

Answer 49

I can solve it if you confirm that.

Answer 50

@InsanelyChaotic no what we need is to see a screenshot of what YOU see... What we see gives the answer that I posted.

Answer 51

@Algebraic! You clearly have nothing to offer here. Can you please just get off of this site since you're not wanting to contribute? I'm not even asking you to at this point. It's difficult to learn a single thing, or grasp any part of this with your sarcastic comments.

Answer 52

One second, @richyw

Answer 53

lol no.

Answer 54

2x−y+z=−32x+2y+3z=23x−3y−z=−4
2x−y+z=−4
−32x+2y+3z=−4
23x−3y−z=−4

Answer 55

There we go.

Answer 56

the problem's already been solved for you. Too bad he deleted the soln. Also too bad that many people had to waste their time deciphering your equation spaghetti.

Answer 57

This is where I'm confused, whether it's equal to -4? That's how I personally see it as.

Answer 58

post an ss or stop posting.

Answer 59

If I knew how to decipher it myself, believe me I wouldn't have even thought of going on here. My apologies for the mix up and my appreciation towards all who have spent their time working this with me,

Answer 60

@InsanelyChaotic Copying and pasting is NOT screen capturing. We need to see if the error is occurring BEFORE or AFTER you copy and paste it to open study. I am not trying to be rude, I am trying to help you get quality answers.

Answer 61

I can't screen capture it; this computer doesn't allow me to

Answer 62

There is no error. That's how it has been given to me.

Answer 63

Well, clearly there's an error in deciphering what it's asking, but that's how it is asked. I don't know how to separate the equations properly.

Answer 64

ok on your screen does it look like this \[2x - y + z = -32x + 2y + 3z = 23x - 3y - z = -4 \]or this...\[2x - y + z = -32\;\; x + 2y + 3z = 23\:\:x - 3y - z = -4\]

Answer 65

I mean is there a space between the -32 and the x?

Answer 66

It looks like the first one, @richyw

Answer 67

No space

Answer 68

it's
2x-y+z =-3
2x+2y+3z=2
3x-3y-z=-4

Answer 69

ok then there is no deciphering to be done. These ARE all equal to -4 in the way you are solving the problem.

There is obviously a technological issue you are having! You will need to figure these out before we can help you on open study! It's simple as that. If you show your math teacher the issue they will understand why it is a problem.

Answer 70

I appreciate your efforts nonetheless

Answer 71

no worries, I hope you are able to sort it out soon so you can start doing the math problems!

Answer 72

I appreciate it very much, really. I didn't mean to waste your time but your efforts were thoughtful.