what are the variables in mathematics?
variable, in algebra, a symbol (usually a letter) that represents the unknown value of an equation. Commonly used variables are x and y (real unknowns), z (complex unknowns), t (time), r (radius), and s (arc length).
variable in algebra a symbol usually latter that represents the unknown value of an equation commonly used variable are x and y real unknown z complex unknows , t time R radius and S are length..