expression let's say we have four times the quantity x minus y whatever X and Y are and then plus one and then I'm going to give you as a kind of like part of the problem that X is equal to negative 2 ...

Thirdly, variables are note-specific, meaning you can't use a variable declared in one note in another one. Fourthly, the variable names are also not case-sensitive. So, p is the same as P, and ...

Algebra uses letters and symbols in the place of numbers and can be used to simplify expressions. Algebraic notation close algebraic notationA series or system of written symbols used to represent ...