Question

Solve x + 2y = 134x + 8y = -9




(3, 5)

(-1, 7)

No Solutions

Infinitely Many Solutions



(Basically I've been learning the wrong material and do not know how to go about this material.)

Answer 1

Please stop writing these as compound equalities when they are not.

Answer 2

Now how are you gonna solve them...is it 134 or 13 and 4

Answer 3

No answer either way

Answer 4

That is how they are given to me, @CliffSedge

Answer 5

Are there many solutions or none at all?

Answer 6

134x*

Answer 7

Here is a multiple choice question for you:

What is your system of equations?

A) x+2y=1, 34x+8y=-9

B) x+2y=13, 4x+8y=-9

C) x+2y=134, x+8y=-9

D) None of the above

Answer 8

None of these types has a right answer in the choices given in the question!!!

Answer 9

Where are you seeing these questions? If they are from an online problem set, you should alert the web site developer that they are getting output errors on their pages.

Answer 10

here is my guess
solve \[ x + 2y = 13\]\[4x + 8y = -9\] lines are parallel so there is no solution

Answer 11

Well, may be you are right @satellite73

Answer 12

if it really says \[ x + 2y = 134x + 8y = -9\] then there is a massive typo

Answer 13

We've seen these same kinds of typos several other times, Mr. satellite.

Answer 14

It is a systematic flaw in wherever @InsanelyChaotic is drawing these questions from.

Answer 15

That's how they are brought up to me in context

Answer 16

are they from the notes given to you or a text book or a website?

Answer 17

Again, where are you seeing these, @InsanelyChaotic ?
If they are from an online course, you need to send an email to whoever is in charge so they can go in and fix these errors.

Answer 18

The answer I had was "no solutions" all along. I just needed to make sure that there werent a various amount of solutions

Answer 19

Yes, an online course

Answer 20

It's from a website

Answer 21

Do you understand from satellite's astute guess that the system is x+2y=13, 4x+8y=-9, why there is no solution?

Answer 22

All of these have errors in it, how is the professor to say I have to solve such problems?

Answer 23

Ahhhh..then do email the admin of that website

Answer 24

Yes, when he explained it, it made sense. I needed background info as to how it wasn't a solution and received just that. thanks @satellite73

Answer 25

tell your professor that the online course shows massive typos...

Answer 26

Call or email your professor and tell that person what is going on and have it fixed. If other students are having this same issue, it can cause a major problem for people's grades.

Answer 27

This one is no different:



Solve 2x + 5y = -133x - 4y = -8
Answer

(4, 1)

(-4, 1)

(4, -1)

(-4, -1)

Answer 28

Ok, I'm about to email, but what exactly do I say?

Answer 29

Say that the systems of equations are getting smushed together so you can't tell where one ends and the other begins.

Answer 30

Copy an example to show as well.

Answer 31

its 2x+5y= -13 and 3x-4y= -8

Answer 32

Is that right, though? To say such thing? The professor could easily say that it's a part of math and that part of solving is understanding where it begins and ends

Answer 33

Which specific example do I copy? The one that satellite offered?

Answer 34

No he is wrong if he says so...You are not to find out the starting and ending points of the equation from the answer choices provided...

Answer 35

For 2x + 5y = -133x - 4y = -8, you have to guess where the break is supposed to be:
2x + 5y = -1 | 33x - 4y = -8
2x + 5y = -13 | 3x - 4y = -8
2x + 5y = -133 | x - 4y = -8

In the meantime before it gets fixed, you'll have to solve all of the above to find the right answer. I'm guessing that it's the one in the middle since so far all your coefficients have been single-digit numbers.

Answer 36

Yep that's what i said and you are right..

Answer 37

"Is that right, though? To say such thing? The professor could easily say that it's a part of math and that part of solving is understanding where it begins and ends"

Yes, it is right to say such a thing. It is the only ethical thing to do. If the professor said such a silly thing in response, then he should be fired.

Answer 38

I'm emailing as we speak, thank you guys

Answer 39

go with the example which we are discussing now...but its okay to send any example

Answer 40

I wish I could hug all of you haha

Answer 41

Alright, definitely

Answer 42

You can provide all of the examples that you've seen so far. You can say, "Here in problem #__ the system of equations looked like ________, and it was very confusing. Same thing here in problem #___. It looked like _________."

Answer 43

*HUGS* @InsanelyChaotic
You've been a real trooper dealing with this madness.
It's fun for me 'cause I'm a huge nerd, but you shouldn't have to deal with such confusion.

Answer 44

@CliffSedge I agree once again!!!!

Answer 45

Thank you very much @CliffSedge And people wonder why I hate math.....

Answer 46

So, are you up with any such UNIQUE questions left to deal with?!

Answer 47

Yes, far too many

Answer 48

Here is the email, keep in mind that talking about math, much less pointing out math errors is not my strong suit:

Answer 49

I'm running in some trouble pertaining to the second module. It's taking me longer because I'm getting mixed up after taking notes on each lesson. Also, I've been hitting the "save" button more than I have been pressing the "submit" button, but I am not far behind. I second-guess a lot of my work. Anyway, what I came to you for was that when I'm going thru some of the quizzes I'm seeing things that don't seem accurate. Bear with me.

Solve x + 2y = 134x + 8y = -9




(3, 5)

(-1, 7)

No Solutions

Infinitely Many Solutions


(This is seen as a compound equality. My guess: x + 2y = 13
4x + 8y = -9)

I see a typo if it says x + 2y = 134x + 8y = -9

Answer 50

Just try to identify the right equations or if I were you, I would leave this bloody problems aside and continue on some other work!!

Answer 51

But I want to proof the professor wrong!!!! ;)

Answer 52

Had the point but you could have mentioned the number of such problems you dealt with.

Answer 53

Now....you can't do that unless he tries to justify the equations represented in the module even if they are wrong

Answer 54

I need specific details as to why it's wrong to put in the email

Answer 55

"And people wonder why I hate math....."

Don't hate the math, hate the poorly-stated problems.

Answer 56

You haven't met this man, he'll do and say anything to proof he's right

Answer 57

@CliffSedge Fair enough, but it's not my strong suit

Answer 58

I don't think he can do that if we know what is right

Answer 59

If he gives you a hard time about it, give me his email address and I'll lay the mathematical smack down on him.

Answer 60

Right-OOO @CliffSedge

Answer 61

What would you say in the mathematical smack-down? hahaha

Answer 62

Specific examples.....? Or is the email good?

Answer 63

I'd outline any and all of his rebuttals and go through them one-by-one, showing with mathematical proof why they are wrong.

Answer 64

the email is good..Don't worry about that!!!

Answer 65

I think your email, as is, is fine. Make sure to mention that all of the systems-of-equations questions that you've seen have had the same flaw.

Answer 66

English is my strong suit, I worry.....! ;)

Answer 67

Shall I tell you all what the response is when I receive it?

Answer 68

hahaha..the prose is tight..you did it well

Answer 69

Oh, then you'll probably want to fix a few grammatical errors:

"I'm running in some trouble ..."

Should be "I'm running in to some trouble."


"...when I'm going thru some of the quizzes..."

misspelling of 'through.'

Answer 70

My error, I typed it in frustration and in an overall rush

Answer 71

"Thru" is the lazy way to spell "through"

Answer 72

Well, I knew you were not to make that error if you had enough time and calm mind while sending that email..

Answer 73

Sarcasm? haha

Answer 74

This has me so worked up

Answer 75

hahaha...!!

Answer 76

okay..its an absolute fun talking and working with you both PARTNERS...its 1am here and i've to go to bed..GOOD NIGHT

Answer 77

I think a cold drink and a walk outside is the correct next step in this process.

Answer 78

Thank you @AbhimanyuPudi !!!!!!

Answer 79

(or a cold drink and a lie down in a bed in Abhimanyu's case)

Answer 80

If only I could lie down.... more math...!

Answer 81

my mom hits me with my cricket bet if i try to have a cold drink now!!!

Answer 82

*bat

Answer 83

hahahahahahahhaha

Answer 84

your mom sounds insane

Answer 85

No no...i was just kidding..my mom is asleep and she doesn't know anything of what i am doing now...

Answer 86

Get some sleep :) you earned it, thank you again

Answer 87

you are welcome...bye