Basic Mathematics & Algebra : Substituting Values Into an Algebraic Expression

[hazellovesyou123]

Huh!!!!!!!!!!!!??????????????

[sierrastaysfly]

Thanks for the refresher

[caliwood909]

in the portion where you say 12 +(-8) = 4 how did it convert into a postive 4 ? im sorry thats i guess where i have issues is where the negatives come into play i understand now that when i see two negatives it = a positive but when i see or subract or add a negative and a positive i have issues it throws me off .. can u please explain or do you have a video for it ?

[nissan300ztt]

awesome video. I had forgotten so much algebra since high school and you helped me get it all back inline, at least when I know what the variables values are. Thanx for the video.

[ahhhhB]

I was working on a problem for what seemed like forever. I thought I was doing it right, but when I kept getting the wrong answer I felt really frustrated. Now after watching this I realized I was totally overlooking it. Fail :)

Thanks

[anilm2010]

Gr8 way to learn Math, where were u when I was learning Math in School ;) I subscribed!

[eddiefromnyc]

your so clear on all your videos....thank you...

[tamalayne]

you're AWESOME....THANK YOU SO VERY MUCH!!!!!! =>

[kenavatar]

Ok that's why...