Oh, dude, like when you see a number followed by a letter in algebra, it means you're dealing with a term where the number is multiplying the letter. It's like saying "hey, little letter, you gotta hang out with big number over here." So, if you have 3x, it's like saying 3 times x, which is just math's way of keeping things interesting.
It can mean that it is a vector.
In Algebra, "is" means Equal (=).
well the . is multiplication. a number and another number separated with a _ is multiplication. a + is addition, and a - is subtraction. got it? teehee!
i means imaginary number or what you would find the square root of to make -1
Oh, honey, that's just a variable! A number and two letters in algebra usually represent a mathematical expression or equation where the number is multiplied by the variable. It's like the algebraic version of "X marks the spot."
An unknown number
"n" stands for an unknown number.
"b" is simply a letter in algebra to replace an unknown number.
In algebra, there will be letters. Each letter represents a number. Different letters stand for different numbers. e.g. x=1 but y=3. if there are many X's, they all mean the same thing.If there is a number before the letter, you multiply the number by what the letter represents. So 3p means 3*p. This is very simple algebra. I haven't learned complex algebra yet, but i can understand it. But can't explain it well.
n is any number, (it is not n because it is the first letter of the word number,because the 'n' could be a 'q' or a 'h') Basically, 'n' is any number, and usually when working with algebra, it is easiest to work backwards
D can mean anything, it's only substituting a number that you have to find out. That's how you do basic algebra
a variable (an unknown number/ any number).
The variable is the letter, the thing that can be changed.
It can mean that it is a vector.
What do you want it to mean. As a variable it can be used for any amount of any substance.
if there is a letter (example n, z ) instead of a number in algebra it stands in place of that number. this means if you are doing multiplication you are going to divide the numbers to get the answer for your letter . if you are doing division you do it the other way around! easy
In Algebra, "is" means Equal (=).