## 93 thoughts on “Solving Systems of Equations… Substitution Method (NancyPi)”

1. Eshnan Biswas says:

I love you Nancy

Nice voice π useful easy to me!β¦….πΉπΉπΉπππππππ€©

3. My_Bay_Jed says:

I have a test on this tomorrow and I have NO IDEA what I'm doing

4. FBI says:

this tutorial doesn't help me because you are so beautiful that its disturbing me i cant focus

5. Freaty the Dreary says:

I knew all my confusion would be gone after watching this video, and I wasnβt wrong. Thanks for helping againβΊοΈbeen watching those videos for almost four years now, saved my ass countless times

6. Mani Ram says:

I can't understanda mam please sum easy method you sa

7. Pravin Thapa says:

8. Williams Josh says:

Hi
The video is cool, but please if u can solve ( 2x + 5y = 33 & ( x + 3y = 19 ) using substitution method that will be great. Thanks

9. Mystic Yagurl says:

THANKYOU so much OMG

10. Dream Level Productions says:

you make me want to learn math

11. GROUNDPOUND69 says:

Nobody:
Math:iNfInItLeY mAnY sOlUtIoNs

12. Tanner Powers says:

Hi.

13. dave forfav says:

This is better then khan academy

14. kamel hatem says:

Thank you so much teacher!

15. Ayush Saini says:

Lovely smile

16. Zakk Poptani TV says:

Daymn I wish I had a hot teacher like her

17. Malechai Burden says:

thank you soooooo much you really helped me to pass math β₯β₯β₯

18. Chaitra Shirkol says:

How you write from your left hand

How long and tedious this is is really confusing me. I have 2x+7y=222 and 2x+136=6y and I canβt find anything videos that are set up to help me with an problem like that. My jackass of a math teacher gave us homework the night before a final. Heβs a piece of shit.

20. tasneem dawud says:

Ur an angel

21. Hidayat Ali Boto says:

Thanks

22. R dlc says:

Life saver

23. Sam Licorish says:

For some impressive reason, women most often seem to teach so much better than men. So many male teachers offer the easy examples. You instead chose to show the more challenging ones with fractions as well, offering a way to see the fractions' solution when it is not obvious (as in whole number / one). You offer students a way to solve these with assurances that they too can get math done. Had I had your teaching when I was young, I might've even fancied myself as a modern-day Euclid. Well done, thank you.

24. young dk out says:

Very nice videos

All of ur video is very helping me in my math. Last month, I got 86% for my mark. Thanks

26. sasha devillier says:

im so distracted by the fact that she writes backwards, or at least it looks like she is :0

27. David Schriek says:

Gosh you explain things well–thank-you!

28. Biff Bifford says:

If you were my math teacher n high school, I would be a physicist today!

29. Abedin Abbey says:

my god i can't concentrate you're really beautifulππ

30. Lynetta Alcoser says:

Thank you so much! You are a natural teacher! Your video helped me prepare for my test!

31. Benhard Da F says:

I love you

32. junior encyclopedia says:

easy method thanks a lot

33. karen hartoon says:

oh babeeee

34. ro king gurls says:

After watching this video 10 times now I got it

Maybe…

35. Jovanni Pimentel says:

Mode of instruction made it much easier to understand. Thank you!

36. Lct says:

I love you

37. Rampage Gaming says:

Thanks a million this was extremely helpful

38. arklanbk says:

shes not writing backwards and shes not left handed, they flipped the video

39. Abdel Ilast says:

great explanation and a beautiful accent.

40. maria bryngelson says:

I saw this video as was scrolling through the internet for systems of equations, why because I was failing my 7 grade algebra class I saw the video a good 3 times and I turned into a calculator. thank you so much. (T_*) thank you

41. Ray Rojas says:

any videos on gaussian elimination

42. maria bryngelson says:

did you know if you type awesome while watching a video the red bar at the bottom changes colors

43. Chel Belle says:

Confused

44. J M says:

Thank god, finally a pretty math teacher and the name Nancy pi perfect. God bless you Nancy.

45. MSFslappy says:

Her voice us calm

Question: is it normal for a variable to be equal to a decimal? e.g. x=1.9 ?

47. prince erastus says:

i like your math videos from Kenya

48. DOOBIE SHOOPE says:

HOW ARE YOU WRITING IN THIN AIR!!!!!

49. deezz nutz says:

your a goat thank u very much

50. Bob Yugojkoviki says:

My college professors suck i dont recomend college use youtube and google thanks nancy

51. Pluto says:

Everyone here left handed (including me) hit the like button
π

52. atlewis 1 says:

But 2x minus 2 is zero not -2

53. Hirun Jayawardana says:

writing backwards is haaaaaaard

54. Norah Christine says:

damn she is lefty and is writting backwards!!!

55. Najaf Zahra says:

with all regards,
i did the last one and have a little confusion on the signs Q) Y=-X+1
Y (place) Y=X-7
-X+1= X-7 (1 go's to right hand side 7+1=8)
-X=X-8
-2X=-8 -8/2
(simplifying) -8/2=4 now here i am little stuck with signs its negative 8 over positive 2 now will i be getting -4 in results or +4
X=4 or X=-4
(Y=X-7 in place) (Y=X-7 in place)
Y= 4-7 = -3 OR Y=-4-7 =-11
PLEASE ANYONE WHO knows HOw To DO THIs help me

56. MisfitMavis says:

Omg thank you girlπ­ I needed this!! Thank you a million times youβre a legend!!

57. Jamia Handfield says:

I thought I'd never be able to do these. This was extremely helpful!

58. Gugsi Bubsi says:

Where did you get that -4 ??

59. Ahmed Said says:

I wish you are my teacherππthank You so much SiSπ

60. Sujitshanu Dilip says:

This was really helpful to my daughter
Thanks a lot πππππ

61. Angela Mosby says:

who else is watching this full volume mid test?

62. Updirahman Ztylesh says:

Γ-4y=3
2Γ+5y=3

63. Vivek Sahu says:

The Best teacher ever thank you Mam for this video

64. - GOD says:

why are you so damn hot

65. KataKing8 says:

Reading backwards, writing backwards and writing lefty. Wow. Couldn't do that in a million years.

66. Carlos Diaz says:

Thanks Nancy! you rock!

67. Amcam Consulting says:

Where were you when I was taking HS Algebra? You have a pleasant demeanor and your students should be grateful.

68. ayes andayes says:

you seem like ur being held at gunpoint, are u ok?

69. Tahjamar Phillips says:

Thank you for all the help

70. Π―ΡΠ΅ΠΌΠ° ΠΠ΅ΡΡ says:

Elimination would not have worked either for the last case because of signs of positive and negative not allowing for clean multiplication

71. AshesRulerOf40Legions AllHailMe says:

Damn, that was hard to just watch but I think I got it. Thanks so much for making these vids you might of just help me pass my finals will keep you updated if I pass ^ ^

wait in 3:30 i don't know why you subtracted the minus two x from the eleven, i thought that you could only take it away from the x
any help will be much appreciated
XD

73. queen aqsa yousuf says:

woah! this what i was looking for thanx this helped me a lot

74. Kitzya says:

Thats so easy π

75. Desmond Bangura says:

2Γ+y=you're an angel on earth

76. anna does things says:

You do you write backwards

77. Yeny Rose says:

TMR is my final and this is the only thing I struggle on.. so Iβm so thankful I found this video you teach better than my teacher<3

78. George Turkson says:

Easy

79. Sugarrcookiie says:

I have a test in a hour…. I AM CRAMMING INFO IN NY BRAIN BECUZ I NEED DIS π

80. Akash singh says:

Ur so pretty i cant focus in next viedio wear maskππππ

81. Neonik Quill says:

Ur so good at teaching nancy i love math and also uπ

82. the girl who loves maths says:

Thank you so much Nancy. It's so great to see a woman making such an impact in the math world. Beautifully chosen examples by the way. My class loved this video.

83. Jason Kelley says:

Proof that the genetic lottery does exist! Congrats on your winnings Nancy! Incredibly helpful videos and I appreciate your time efforts.

84. Kakashi of the Sharingan says:

y'all telling me she was writing backwords?? NOW that is true commitment! ANd thx your helped me study for my finals thx thx thx.

85. Nuclear Gamer says:

Thank you for the help, I am a new subscriber from now on!

86. Kieran Ewanicki says:

can you make English vids

87. Rapper's Nation says:

Smajh nhi aaya pr sun kr acha lga….

88. Agatha N Fahnbulleh says:

Thanks so much for making me understand
I love itππ

89. Ricardo Saavedra says:

Thank you.

90. Althea Maye says:

How study without writing on your notebook

Me: watching on youtube on how tf to solve

91. Abhishek Pillai says:

But with question two they are just the same function. You can see this if you multiply all terms by -2 in the 2nd function. That's why there are infinite intersections and therefore infinite solutions.

92. Akshay chouhan says:

Is she writing in reverse direction?

93. The Conscious One says:

Best teacher on Youtube, I mean it.