These are common letters used to describe the unknown quantity for which you are solving. They can be any letter of the alphabet, it's just that these four letters are the most commonly used ones.
Algebra is important because it is another branch in math that expresses letters as numbers, instead of plain numbers. Algebra is also used a lot in science, that is why it is required to know.
To represent variables you don't know, or could be anything.
it is easier to substitute them for letters because if we used numbers then constants (numbers in algebra that don't have letters) would get mixed up with the algebraic letters. also makes things easier to read and to understand. also, if you don't have all the information, you can use letters to represent what you don't know
Algebra is important because it is the stepping-stone for other types of math, such as logarithms, geometry, and physics. If someone had not invented algebra, much of what we know today would not be known.
um wat algerbra is um something can someone like tell me wat algebra mean cause i have know idea and with football idk
dissertation I know it's short of 15 letters- maybe someone else has a better answer.
it means that you talk to someone else..somewhere else in the world..u usally send letters or emails...depending on what you want..but you send letters and talk to people and get to know people who you dont know...and possibly make friends. (if you r lucky) :)
YOU CAN USE ALGEBRA FOR A LOT OF THING. THE LETTERS JUST REPLACE NUMBERS THAT YOU DO NOT KNOW. SAY YOU DID 2P+5N( TAKE P=5 AND N=8) YOU WILL DO 2X5=10 AND 5X8=40, SO YOUR ANSWERS 50.
It depends on how far you are on Pre-algebra. If you don't know anything, I recommend you take Pre-algebra 1. If you are advanced in Pre-algebra and you know variables and expressions then I recommend you take Pre-algebra 2
The letters in algebra stand for unknown numbers or amounts that you are trying to find out (calculate).For instance you have 3 things and you want to find out how many you have to add to get 5 things. You call the unknown amount X (or any letter you like) and you use an algebra equation to find the answer. So:3 + X (the unknown) = 5...and you already know the answer is 2, but when you learn the rules of calculating with algebra, you will be able to find the answers to much more complicated mathematical questions. Basically, you call the unknowns any letter you want, then you make an equation using the numbers you do know, and then you solve the equation.
i don't know what it means
Being given letters on Valentine's Day means that you are loved by the sender, and that they want you to know that.