Simultaneous Equations - Algebra Math Trick 

someone please give this man a Trophy

I've been really struggling with these, your trick method is a saver, thanx so much for sharing!!

It would be quite nice to see the proof. For me that would make it easier to remember. Four-ish + years later your still helping people...thanks.

thank you so much for this video! You have really helped me to achieve more than you will ever know. These videos are my Go-To for prep work for my studies in mathematics. I have always struggled with maths but thanks to your videos, I am able to complete higher education university courses that I normally would struggle so deeply with. thank you so so much for making me finally be able to understand maths even if it is at 31 lol.

This an awesome and super simple way of solving these equations - thank you so much!

you made my life too easy... you made it so simple like 1+2=3. you r a true maths teacher!!!!!!!!!!!! :)

You have honestly made my day making this method so much easier. Thank you so much!

Thank you so much for sharing this technique, really appreciate it.

You are the definition of legendary. This helped me out with my homework a lot! Thanks!

this was very helpful. THANKS!!!!

excellent content, very easy to follow, great for young and old, who enjoy mathematics, thanks again, bravo

THANK YOU SO MUCH!! I FINALLY UNDERSTAND HOW TO DO SIMULTANEOUS EQUATIONS! I THOUGHT IT WAS IMPOSSIBLE FOR ME TO LEARN AND I WAS GOING TO GIVE UP BUT THEN I WATCHED THIS AWESOME VIDEO :D

very helpful. i was going to faill my test but then i found your channel and now i am really confident with simultaneous equations. thanks!

THANK YOU !!! HAVE MY MATHS GCSE NON CALCULATOR PAPER TOMOROW :( !!

WOW, you're awesome. 100% better than any teacher I ever had.

omg this is so helpful i found my teacher both eliminating and his way extremely difficult after this i feel like imma gonna get an A* on the exam THIS IS INCREDIBLY USEFUL! thank you so much!

this is really helpful...i couldn't do this to save my life and now thanks to you I'm getting them correct. thank you!!!!!!!

Awesome...Thx for that, I am having so much trouble with this, and this makes things somewhat easier to me.

if it was possible to press the like button many times i would have pressed all day this trick really works thank you man

Also if there is an addition and subtraction you have to add the numbers on the division line instead of taken them away

Anyone else got a maths exam tomorrow?

+tecmath you are the best maths teacher in the world!!! I wish you would be my maths teacher!!! ANYWAYS... Good video!

I have much to say but..I'll just make it simple..You are awesome PERIOD. I just love all your videos. So cool

After watching over 100 videos on substitution. You have just enlightened a 62 year old man. Thank you kind sir.

Thank you so much for making algebra easy!! You are one of the best math teachers I can't Thank You enough!

Thx FOR HELPING tecmath... got my answers... and a good trick.

I wish u are my math teacher i love u❤️❤️❤️❤️❤️❤️

Thank you so much for making it easier for me to understand and solve it! I got it instantly and i'm gonna use this method for exams.

this is really nice. I got the explanation perfectly. this became very easy for me. Thankyou

Thank you for teaching me this method bro u need a oscar

thank-you sooo much this method helps so much with revision and hopefully my mocks and exams :D

Subbed you made it interesting!!!!!! I'm ungraded in the whole maths... This made me interested to solve like a mystery with tricks and tips... I'm coming 40 and now I find it interesting...

I like your channel. The best channel to come around.

What do you do if there is a minus in the second equation?

Thx mate, best easy quick light lesson 😅👊🏻

Thanks muchly! This helped me help my high-schooler with her homework.

Thankyou so much. You've just earn't yourself a subscriber.

This best work n I best remember it got ma gcse exam this morning n this is ma first piece of revision

Check your settings video resolution? The video is in HD. Let me know how it goes.

Damm you made things much easier...every damm time they put this long equation on the board to get one answer you just simplified it

Now I have got to practice what he just taught, but I like this method. Thanks!

Your voice is great, your demonstration is outstanding because you are marvelous 💞 thank you.

WOW THIS IS VERY HELPFUL I WISH I SEEN YOUR CHANNEL WHEN I WAS IN HIGH SCHOOL!!👍👍👍👍

U just made it so Easy.... Thank you so much sir.. From India... Namaste 🙏

thank you sooo much, my mocks are coming up in 3 weeks and I was stressing

thank you so much! i really needed this i havnt been at skwl for this entire thing and my maths teacher really sux:( but now im pretty sure that wen i go back im gonna ace this section even tthrough his really confusin and bad teachings!xx thx alot!

You are GREAT teacher! I wish you would come out with a PDF booklet so that students could practice at home.

Thank you for this excellent presentation.

Super simple. Very good!

Seriously, how did you find out about this? At first I passed it off as a niche equation scenario, but I tried it out and it works for any equation in this form. Incredible work.

wow you literally just helped me soooooooooo much thank you mate

i never really liked this^^method, but the method i use works well, i find it's simple and it's easiest for me, also when written out properly(which is impossible in a YT comment) it's fairly easy to follow. The steps are #1 make one of the variables the same in both equations then forget that variable exists. #2 find the difference(subtract) between the remaining numbers #3 divide the the two numbers as shown below to solve for the existing variable. #4 substitute and solve for the remaining var. just an alternative method i prefer using. EX1: #1: 2a + 3b = 2, #2: 4a - b = -24, multiply #1 by 2, so #1: 4a + 6b = 4 and #2: 4a - b = -24, then find the difference between the two equations, so (-24-4) x -1)=28 then (6b minus -b) or 6b+1b=7b, then divide 28 by 7 and b=4, then 2a+12=2, minus 12 from both sides so 2a = -10 divide by 2, and a = -5, EX2: #1: a - 2b = -14, #2: 5a + 3b = 14, #1 times 5 so #1: 5a - 10b = -70(find the difference), -70 - 14 = -84, 10b - 3b = 7b, (then divide) -84/7 = -12, so b = -12, (substitute value for b then solve), a=10.

THANK YOUUUU THIS WILL HELP ME WITH MY MATH TEST!! :) this made everything so much more simple thanks again :D

Frickin Brilliant, thanks alot Mate!!

I'm the happiest puppy alive, stumbled across this and decided to do my assignment..................thank you!

very excellent trick........ hats off to you

you're an absolute legend mate.

what is the equations come like x-y=3 1. xy=28

ur a life saver I needed this thank u

I feel so Dumd I haven’t done math in 2 years and know that I have to take math for college I feel like I will fail but your RU-vid channel makes it alittle more better cause I understand.

I have a test tomorrow and i am literally searching for a good video to learn from and not a sleepy one!

Thank you sir. This really helped me a lot

I watched this videos three times and I understand it clearly now. Thank u very much for explaining it clearly and slowly now I am saved from getting an 0 in my test😂😂😂😂.

The best teacher ever!!! : )

I got a exam tomorrow and I know nothing for maths but after I watched this video I'm a master of maths now thanks

I understand very deeply but I love to watch your vids anyway

thank you! this was extremly helpful for my end of year exams! XD

This helped so much thanks

Thanks so much! Your video helped me out alot!

smooth and easy, thanks

BEST MATHS TEACHER EVER!!!!!!!!!!!!!!!!!!!!!!

Nice trick. Thanks.

Thx a lot this will help me in my exams tomorrow

Dear Tecmath thank you very much for your time on RU-vid. You are among the very handful of great teachers on RU-vid who is able to explain everything via simplication. You said around 6:46 that you did a lesson on being able to calculate large numbers i.e. 98-252 could you let me have the RU-vid address because I'm relearning maths again and want to be in a position to help my son who is 9 now. I am able to help him at the moment but want to be competent when he gets to this age. However, he is struggling a little with mental maths in adding up and taking away large awkward numbers for eg 794-86. A technique I use is with the 794 discard for a moment to a corner the 94 part of 794 which leaves 700. Then use the 700 and subtract the 86 but one has to visualise how far away 86 is from 100 which is 14 which gives 614 and bring back the 94 to add onto 614. Now swap the 14 of 614 with the 94 which gives 694 and then add the 14 giving 694 + 10 is 704 plus the 4 = 708. This might be complicated for a 9 year old to mentally visualise and he almost has it but is not quite. He can do it on paper though most of the times so we still have to practice this part too. Any help much appreciated. Thank you so much.

it works, you have to reorder the terms and solve for Y first 3y+2x=12 then 4y-3x=1 then y= 36-2 over 8+9 = 34 over 17 gives you y=2. you add the 8+9 because you use the opposite sign of what was in the equation. Make sense?

bro this trick actually worked on me this actually the greatest thing ever

A way to remember the order of the 4 steps would be a nice addition. even just numbering the lines or using 4 different colors might help 🤷‍♂️

It so good and It easy to understand! Thank you

Doing my A-levels and i totally forget simultaneous equations... This vid helps a lot as i need it to do cubic equations :D ^^

no, you DONT need to speak louder lol ..Your videos are terrificly explanatory and super relaxing at the same time. Keep on being awesome :) :)

nice u make this equations easy thanx

Outstanding.

this is extremely helpful thank you

thank you for making me love maths.

Thanks a bunch!

I just learned how to do this and my 9th grade math class hasn't even started doing problems thank you

wow this really helps thank you soo much

thanks found it very helpful 😎

one more SUBCRIBER for you. thanks!

I kinda did it a different way for eg 3x + 2y = 12 5x + 3y = 19 We multiply the first one by 5 (because of its 5x) and the second one bye 3 (because its 3 x) now we have the equation like this 15x + 10y = 60 15x + 9y = 57 now we subtract 15x - 15x = 0, 10y - 9y = y, 60 - 57 = 3 now we have the equation like this y = 3 and if y = 3 we look at the first one 3x + 2y = 12 and change it to 3x + 6 = 12 and with simple algebra we know x = 2 & y = 3 and if you multiply it form the start its is correct and have a nice day

thank you you just made math a lot easier for me . xox

thanks man, great trick

Thank u i finally understand got full marks in my MATHS test!:)

I LIKE YOUR CHANNEL VERY WELL

Thank you so much pall

Thanks you taught it better then my teacher

OMG I HAVE A FINAL TEST TOMMOROW AND DIS VID HELPED ME ALOOOOOOOOUUUT.I THOUGHT I'LL NEVER LEARN SIMULTANEOUS EQUATIONS BUT I WAS WRONG

So helpful thank you!!!🔥

Thanks man im christmas exam is 2moro and you have rescued me i thank you

You are the best in short cuts. I thought making either x or y the same would be easy. But I had to rewrite my method after watching your video. But still (2x+2y)=18 can be written as (14x + 14 y) = 126. So -14x - 14y = -126. Then -14x + 3x = -126 +49 . -11x = -77 x = 7. Isn’t this faster?