What is a variable? | Introduction to algebra | Algebra I | Khan Academy

Our focus here is understanding that a variable is just a symbol that can represent different values in an expression. We got this. Just watch.

Missed the previous lesson?

Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios.

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[alllovelain]

I feel like learning how to do the basics in computer programming helped me grasp the basics of algebra immediately.

[canteras]

I’m here to help out my daughter thanks and y’all wish me luck because I know zero algebra .

[supernumex]

it's been thousand of years, and we still don't know what X is !!!!

[patrickcarpen]

The variable is an unknown number represented by a lowercase letter. If the value of unknown number changes, the letter changes

[mandeepgill]

Amazing thanks u are life saver please explain more dependent and independent variables as well

[Bruh-ekxq]

Wow, algebra makes so much sense to me now! Thank you!

[TheFibrewire]

This is sad despite having this many years, this Channel only has 6.24 mil subs, Khan Academy has been very vital in my career and learning. This kind of shows how many people are interested in learning things or refresh things. Khan should already have like more than 30 mil subs easily. Channels which produces shite has more subs.

[jaakkokuu]

Watching this on my mobile and started to think that a official KA-application, with the possibility to log in with KA user account, would be a great addition to your fine learning environment. Keep up the good work guys and gals ^-^

[FeBreeze.]

this guy is trying to teach us about variables while trying to explain his financial problems

[Koa_ahau]

THANK. YOU!!! ive watched quiet a few videos on variables, this is the only one ive understood

[Beetleeez]

thanks man
your the first person that gets into the problem straight away

[mohammadjafari]

thank u soooo much that help me for my maths homework

[tikax]

Great video, you make it so easy to understand

[upcomng]

Almost turning 30 and I am looking at this. if my teacher was being this interesting I wouldn't have to look it up later on.. oh wait.. I always sleep in a class. Ahh I see

[voidyt]

Right now I am learning programing (JS and CSS) usingf this ind it's great! 10/10

[mallinenirajsujai]

can you make more videos of algebra it can really help me on my second unit

[MochaMacYt]

thanks for this now i can use it to help me in school

[Ripperhyman]

other people might joke but you really helped me understand. thank you.

[marjanlarik]

this is very good way to understand maths

[tggviperbitez]

this is easier and better than school!!! :)