SOLUTION: what the need of x

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts  -> Lessons -> SOLUTION: what the need of x      Log On


   

Question 4719: what the need of x
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
To represent an unknown number, while you are in the process of finding it, usually by solving an equation in which x is involved. Any letter besides x would do, but in algebra, x seems to be the favorite letter to serve as a variable, an unknown that is yet to be determined.

R^2 at SCC