Algebra 2 - Solving Systems of Equations

[rm250rider05]

damn , i learned this way faster than in school .

[nikkixo28]

What a great teacher. Something my school doesn't have!

[geraldinelasexy]

hes mad funny <3 i would love to have him as my math teacher

[flamingaxe791]

Girl fuses at 1:21

[XxBeAsTxMoDexX1]

who's here for mr. marks class?

[RitoruBoraza]

How'd he get a positive 24 out of adding 12 and -12 together?

[xRaynFirex]

@RitoruBoraza to eliminate the -12 on the left side you must add 12. What you do to one side you must do to the other. So he added +12 to both sides

[westernNL]

what a fun teacher, my schools like a concentration camp.

[8644371]

Why focus on knowing the names of the methods? Why not just focus on knowing the methods?

After all: There's a difference between knowing the name of something and knowing something.

[srt10kid]

@8644371 dude just shut up -__-

[kangrena213]

I was up at 2am trying to figure this out & getting so frustrated. Thank you so much for helping me figure it out.

[utaybe]

thank you very much :)this really helped, your teaching skills are excellent and pretty funny too ;D

Ill make sure to check out your site.

[BigBoomSkaters]

I need you to teach me math -_- my teacher doesnt know anything

[blacklikemichaelj]

how did u get 24?

[BigBoomSkaters]

@blacklikemichaelj he added the two twelves together @ 5:50 :)

[blacklikemichaelj]

@BigBoomSkaters oooooo okay, you're amazing! thanks!!!

[blacklikemichaelj]

can i sign up in yaymath or something? i need help in math really bad...

[TheRainbowSpade]

I love you. YOU HAVE HELPED ME SO MUCH!

[LivingWithAoki]

how h get 8x = 24???

[Zainiak]

Wow I really need to learn this for my sat I'm taking it this year in 7th grade

[yaymath]

@Zainiak check out the website for the worksheet that helps you follow along with the lessons. yaymath.org

[aljowder95]

(2x+3y=12)(2x-y=4) so multiply one of them by (-1) doesnt matter which [must multiply the whole equation] -1(2x+3y=12) => (-2x-3y=-12) add the both equations together so it becomes (-2x+2x-3y-y=-12+4) simplify the equation -2x+2x cancel each other out so ur left with (-3y-y=-12+4) which is (-4y=-8) divide each side by -4 (-4 cancels the -4 so your left with y=-8/-4) which is y=2 and now plug the 2 in any of the equations (2x+3.(2)=12) 2x+6=12 2x=6 x=3 answer=[3.2] was this helpfull?

[danniigurl111]

thanks for teaching me, my teacher just passes out papers and doesn't teacher us,

[jtsk8er12]

Thank you!

[DTAxProductionsx]

He wasnt even funny.

[AsyanoTV]

@DTAxProductionsx idc but this is understandable :3

[moonlightfanallover]

this was the hardest thing for me.... and we learned it in algebra one honors.

[AsyanoTV]

@moonlightfanallover lol i didnt know they had algebra honors. im relearning this...algebra 2, and algebra 1...easy as Fuck! lol...alg2 confusing as fucking shit believe me once u get into it,

[travisrey]

U multiply both sides by -1 because the variable can't be negative.

[travisrey]

Hey this Is great. My regular teachers never toaught me this good. Typo taught. Lol.

[cherryspc]

Y=2x-4 why do you multiply both sides by -1 to get this answer?

[lenzub]

@cherryspc Because the its actualy -y=-2x-4 so you have to divide both sides by -1 so that the -y turns to a +y then the -2x turns to a 2x

[lenzub]

@cherryspc Because the its actualy -y=-2x-4 so you have to multi both sides by -1 so that the -y turns to a +y then the -2x turns to a 2x

[lukeluis]

@Stephanopolis13 by moving a number from one side to another it changes wether it is negative or positive.

EX: we have 12x+12=24

by moving the positive 12 with no variable it becomes negative making the equation 12x=12

answer would be x=1

:)

[Sim151796]

i wish you where my math teacher because i never got math untill i found you on here thank you so much! im 14 what grade you teach?

[lukeluis]

@Sim151796 hes probly 9th,10th

[suebear119]

WHY CAN'T HE BE MY ALBEGRA 2 TEACHER!!! HE IS FUNNY!!

[pinoyrawr]

LMAO YAY ENGLISH!!!

[deadfireworks]

this is algebra 1

[EyeWearMySunglasses]

"yay English" = genius!

[Jutmaster1]

Thank you so much ! My math teacher is quite boring , you taught me well :)

[999hanie]

this guy is hilarious! wish he was my teacher., math makes sense!

[KansasCityKing1962]

yay meth!!!! (yes meth)

[M0N3t7]

*whispers:* yay cute teacher...okok. Thanks, Im no longer clueless about math :-). Yay english!!!

[MiiszUniquexX]

YAY MATH! AWSOME THANKS!!

[kookiesncreamx]

yay mathh!!

[callyjohnwell]

Yay English!

[IntensePizza]

Boo English....Math is constant.

[M0N3t7]

HEY! :-P

[IntensePizza]

:'(