Basic Mathematics & Algebra : Substituting Values Into an Algebraic Expression

Substituting values into an algebraic expression in mathematics is easier to do if the numbers the values represent are given ahead of time. Understand algebraic expressions in math with assistance from a math teacher in this free video on mathematics.

Expert: Jimmy Chang
Bio: Jimmy Chang has been a math teacher at St. Pete College for nearly a decade. He has a master's degree in math, and his specialties include calculus, algebra, liberal arts, math and trigonometry.
Filmmaker: Christopher Rokosz

Category:

Howto & Style

Tags:

• algebra
• math
• addition
• subtraction
• multiplication
• division
• numbers

[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...