Simultaneous Equations 1 (GCSE Higher Maths): Tutorial 11

[HEGARTYMATHS]

Dear Gary, Thanks loads for your feedback - it's really pleasing to know i have helped you. Do tune in for A-Level and let family, friends. school know. Sorry I haven't done every paper. I'm a full time teacher and do these vids late at night so can't always do everything people need but just hope what is up here is helpful enough. Best regards. Mr H - p.s. do let me know how you get on!

[MonsieurRay]

You're probably my favourite GCSE Maths channel. The others have bad quality, low audio volume or poor enunciation of words.

[loovlehcuppatea]

Oh my God, it is SO EASY NOW!! Friggin hell you have absolutely no idea how confusing teachers made this whenever this was taught. Now it is SO SIMPLE! God, Mr. Hegarty, you are awesome! May Al Khwarismi (founder of algebra) bless you!

[GRYB]

I thought id just like to say a massive thank you to you! I need a b but prefersbly an a* to do 3 of my a levels and to do my future career in science. From using cgp i got b's but with you i got 90% cal and 83% non cal! Ive gone through all my mocks with your videos but you havent done january and im so stuck on them so that shows how much youve helped.

Thank you and i wilk use your videos for a level!

[nav]

this video helped me to understand that in few minutes what my teacher tried to teach me in a whole week

[HEGARTYMATHS]

Excellent - I'm delighted to have helped!

[HEGARTYMATHS]

Great stuff, I'm looking at from my iPhone and so tricky to type I press wrong buttons. Good luck

[HEGARTYMATHS]

Triple first. Double second to get

15x+6y = 33
8x - 6y = 36

Add eqns to get

23x = 69 (divide by 23)
x = 3 Sub back in to above to get 5(3) + 5y = 11 so 2y = -4 y =-2

[HEGARTYMATHS]

2x+4y = 1
3x - 5y =7
Triple first, double second
6x+12y=3
6x-10y=14
Eqn (1) subtract eqn (2) careful with the minus minus
22y = -11
y=-0.5
Sub back in very first eqn to get 2x-2 = 1 so x=3/2 = 1.5

[demiLA]

trust me you don't know how much you helping people out
seriously you too underrated.. so much effort thank you very much sir

[HEGARTYMATHS]

X top by 3, bottom by 2 to get

15x+6y=33
8x-6y=36

Add eqns
33x=69
X=13/11 then sub back to get y

[fahmeibrahim]

Hi mr h your the best because of you I got an a in a mock exam


Thnx

[HEGARTYMATHS]

Yes comments below have spotted that one. Good luck tomorrow and make sure you check out hegartymaths.c.o.m. for loads more help and for Friday's calculator paper. Please please also share with friends, family and school. Best wishes. Mr H

[HEGARTYMATHS]

Please go to hegartymaths.c.o.m. anf go to A-Level, Edexcel, Core 1 and you will find a video to help you with this. Thanks for your kind comment. Best regards. Mr H

[HEGARTYMATHS]

Keshika - of course I remember you! All of this is perfect apart from the very last line! If 3x=6 then x = 2 right? (not 3) Best wishes Mr H

[bobsmith]

I love your videos and they've helped a lot, the only issue I have is that you don't discuss x squared, y squared or both in a simultaneous equation, surely AQA present this in their exams?

[HEGARTYMATHS]

ignore that bit - it should have been cut out of videos

[jacobcasey]

mistake @ 17:00 where y and x are equal to 1. x is equal to 0.5, and y is equal to 1.

[boblinton]

Oh yes just noticed the comments and thankyou very much, I now understand simultaneous equations ! I will share with my friends for sure :)

[DUFFERZ]

Thankyou, now understand simultaneous equations. Got GCSE mocks in 9 hours and can't sleep haha, anyway great video cheers!