GRE Math Tricks: The "Something" Method for complicated equations

http://gre.magoosh.com/ -- Get Hundreds of practice questions like this one!


Studying online with Magoosh is different from ordinary online GRE prep methods. Magoosh has over 700 sample GRE questions written by GRE experts, categorized by subject and problem type so that you can easily customize your study session to suit your personal strengths and weaknesses.

Detailed video explanations come with EVERY question to make sure you fully understand the material. Built-in timers, customizable practice exams, ease of use, and accessibility make Magoosh both more time efficient AND more cost efficient than traditional test prep methods.

Try us out for free! Start now at http://gre.magoosh.com/

Category:

Education

Tags:

• GRE Prep
• GRE Math
• Gre Practice
• GRE
• GRE Lessons
• GRE Tutorial
• math tutorial
• tips
• tricks
• shortcuts
• easy
• simple
• math help
• Magoosh
• Magoosh GRE

[dahbialucky]

I dont know why I did not find the same resulat although i have used the very same method... 5-6y/x = 3 and then, we move 5 to the other side to get 6Y/x = 8 and not 2 ???? and this way you will get: 4X= 3Y .... please help

[MagooshGRE]

@dahbialucky I think you just have to look carefully at the algebra here: if we have 5-6y/x=3, you'll have to subtract (not add!) 5 from both sides, which would give you -6y/x=-2, which is equivalent to 6y/x=2. This is why the "Something" method is helpful, because all you have to think is, "5 minus something is 3", and since we know that 5-2=3, we can skip to 6y/x=2 without the step-by-step algebra. Hope that helps!

[dahbialucky]

@MagooshGRE I think it's my mistake .... I just got it now !!!

We write from right to left in arabic and i made the error with the pluses and minuses !!!

Thank you! I just enjoy learning from the Magoosh channel!

[MagooshGRE]

@dahbialucky You're welcome, we're glad you find it helpful :)

[ankusherpa9]

Thank you!!!! This helped a lot!

[MagooshGRE]

@ankusherpa9 I'm glad it helped!

[WellConditionedChimp]

This tutorial gave me wood

[AandKlikepie10]

Wow that is so helpful me and my friend are only in fifth grade but we are advanced so we do stuff like this me and my friend always had trouble now it will be easy

[dahbialucky]

@MagooshGRE Indeed, it does and I am a lot grateful to your help.

But, what I did not understand is that both ways should work just fine, right ???

How come when we move 5 to the other side we get a different result!!!

PS: are you making videos about the AWA, please?

I shall take my gre on Oct 22nd !!!

[deelishussdee]

whoa, u just blew my mind. that is so useful!

[bigworld3001]

Absolutely fantastic!

[sebtamgeospa]

love it love it, thanks!!