Current Events > Can you do my 8th grade pre-algebra lesson?

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Patty_Fleur
01/20/22 7:11:03 AM
#1:


Solving a system of equations using elimination.

https://gamefaqs.gamespot.com/a/user_image/1/5/2/AATwivAAC08g.jpg


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MedeaLysistrata
01/20/22 7:15:49 AM
#2:


No but I doubt your teacher will care if someone else does it

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Patty_Fleur
01/20/22 7:22:42 AM
#3:


MedeaLysistrata posted...
No but I doubt your teacher will care if someone else does it

I am the teacher. That's what I'm teaching my students.
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Slayerblade11
01/20/22 7:23:35 AM
#4:


no i forgot how to do that naruto crap
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Patty_Fleur
01/20/22 7:25:43 AM
#5:


You are really bad at math if you can't do it. Those equations line up perfectly. No manupliation is needed to cancel a variable out.
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MedeaLysistrata
01/20/22 7:26:10 AM
#6:


Patty_Fleur posted...
I am the teacher. That's what I'm teaching my students.
Oh OK, I thought you were retaking a bunch of classes to get to a more stable place

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MedeaLysistrata
01/20/22 7:28:45 AM
#7:


Also lol at the -5 priv points for being a teacher. Not all students can win, but it's not a life or death matter because graduation is a sinking ship

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Turtlebread
01/20/22 7:42:17 AM
#8:


What the fuck this shit is impossible

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El Marsh
01/20/22 7:52:40 AM
#9:


Can you do my 8th grade pre-algebra lesson?

Yes.

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teep_
01/20/22 8:03:04 AM
#10:


Yup

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MedeaLysistrata
01/20/22 8:11:05 AM
#11:


Why no home ec

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Bokothechoco2
01/20/22 8:22:25 AM
#12:


Maybe, but I don't want to read sideways and I'm too lazy to rotate the image.
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Kakapo
01/20/22 8:23:13 AM
#13:


I could, but Im lazy

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sabin017
01/20/22 8:31:14 AM
#14:


Is this where you make one equation x= then plug that in to the other equation to solve for y?

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Alteres
01/20/22 8:36:02 AM
#15:


Ive been doing accounting for 3 years now, I have practically forgotten how to do real math.


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DeadBankerDream
01/20/22 8:37:21 AM
#16:


No, because you turned it sideways so I can't read it.

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Mistere Man
01/20/22 8:37:33 AM
#17:


This may help

https://www.youtube.com/watch?v=oKqtgz2eo-Y

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Cuticrusader09
01/20/22 8:43:55 AM
#18:


I could, but its sideways and I dont want to try and read it.

I had to relearn algebra 1 this year to help my 7th grader who is taking that. The worst part is that they dont have physical books this year for me to flip through. Its all on the computer.

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Mistere Man
01/20/22 8:49:39 AM
#19:


Or this one

https://www.youtube.com/watch?v=d6vyYvx8URw

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GranQroppoop
01/20/22 9:02:21 AM
#20:


Had to relearn dividing both sides and that subtracting a negative number is addition but I'm pretty sure the first one is ( 1 , -3 )

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#21
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Mistere Man
01/20/22 9:19:02 AM
#22:


This one maybe better

https://www.youtube.com/watch?v=0BvqFAeZd1c

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TwigsthePnoDude
01/20/22 9:26:45 AM
#23:


How is this "pre-algebra" if you're using variables?

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Laserion
01/20/22 9:31:32 AM
#24:


sabin017 posted...
Is this where you make one equation x= then plug that in to the other equation to solve for y?
I think that's substitution.
Elimination is probably adding them vertically, leaving you with only one variable.

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Mistere Man
01/20/22 9:58:10 AM
#25:


one more

https://www.youtube.com/watch?v=Tkrqrfkznoo

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Scintillant
01/20/22 10:04:07 AM
#26:


Patty_Fleur posted...
You are really bad at math if you can't do it. Those equations line up perfectly. No manupliation is needed to cancel a variable out.
Would you give your students this feedback

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Mistere Man
01/20/22 10:05:56 AM
#27:


I got them worked out now. Took me forever, but that last video it finally clicked for me.

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NeoShadowhen
01/20/22 10:31:38 AM
#28:


Youd probably take points off because I didnt show my work.
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Bishop_Hastur
01/20/22 11:08:16 AM
#29:


Back in the day I maybe could have, but now in the immortal words of Roger Murtaugh "I'm too old for this shit".

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Seaman_Prime
01/20/22 12:13:01 PM
#30:


My neck isnt at a 90 degree angle, so no
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Bokothechoco2
01/20/22 7:47:44 PM
#31:


So I turned the page if anyone else wants to try for fun

https://gamefaqs.gamespot.com/a/user_image/1/5/2/AATwivAAC08g.jpg

1) x is the same on both equations, so it can be ignored.
14y=-42
y=-3, x=1

2) Same as above, but the top equation values are negative. Divide top equation by -1 to make it more clean to work with
3x+4y=2
5y=5
y=1, x=-2

3) Easiest one, the only difference is 1y
y=-2, x=1

4) Sum the equations
7y=14
y=2, x=5
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dj1200
01/20/22 8:23:38 PM
#32:


These literally arent hard. Is it really your homework?

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#33
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Patty_Fleur
01/20/22 8:30:41 PM
#34:


dj1200 posted...
These literally arent hard. Is it really your homework?

I'm the teacher. And I teach the lower level students.
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Nukazie
01/20/22 8:32:37 PM
#35:


apparently

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Patty_Fleur
01/20/22 8:33:24 PM
#36:


I can show you guys my completed one tomorrow. I left it on my desk though.
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#37
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obsolete
01/20/22 8:35:35 PM
#38:


Been like 15 years since I done math like this.
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DrizztLink
01/20/22 8:38:12 PM
#39:


I was teaching math at about this level for a rehab's GED program, so yeah.

I'm not gonna be good for things more than a few steps above this, though.

No calc at all, me.

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Mistere Man
01/20/22 11:17:32 PM
#40:


Bokothechoco2 posted...
So I turned the page if anyone else wants to try for fun

https://gamefaqs.gamespot.com/a/user_image/1/5/2/AATwivAAC08g.jpg

1) x is the same on both equations, so it can be ignored.
14y=-42
y=-3, x=1

2) Same as above, but the top equation values are negative. Divide top equation by -1 to make it more clean to work with
3x+4y=2
5y=5
y=1, x=-2

3) Easiest one, the only difference is 1y
y=-2, x=1

4) Sum the equations
7y=14
y=2, x=5
I am probably wrong, but I think you need to switch the negative on your answer for 2

x=2 y=-1

Again I could be mistaken though.

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joe40001
01/20/22 11:19:24 PM
#41:


Yes, easily

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Kakapo
01/20/22 11:23:27 PM
#42:


joe40001 posted...
Yes, easily
Yeah, but youre a genius.

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joe40001
01/21/22 1:39:36 AM
#43:


Kakapo posted...
Yeah, but youre a genius.
:)

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darkmaian23
01/21/22 1:44:14 AM
#44:


Sure, but I'd prefer to use Cramer's Rule.
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Sariana21
01/21/22 1:49:41 AM
#45:


No because its sideways.

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toreysback
01/21/22 1:59:50 AM
#46:


i'm not even gonna look. i already know the two answers to the question in the title

1) No
b) hell no!

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Unite
01/21/22 9:26:33 AM
#47:


didnt realize that was considered grade 8
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Cocytus
01/21/22 9:28:00 AM
#48:


What the hell is a coefficient?
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El Marsh
01/21/22 10:14:44 AM
#49:


Cocytus posted...
What the hell is a coefficient?


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Mistere Man
01/21/22 10:18:58 AM
#50:


Cocytus posted...
What the hell is a coefficient?
https://www.youtube.com/watch?v=T9vz755kd20

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