Equations are expressions, so you need to use the "colon-equal" (:=) to define equations involving one or more variables in Maple. 

For example: consider the following equation in one variable:  12x - 5=0 , we want to solve for x. 

To enter and store this equation for subsequent processing, use the following commands in Maple: 

>Eqn : = 12*x-5  (Eqn is a name that I gave to this equation, you can name it anything you want!)

To solve this equation, use the solve (for exact arithmetic) or fsolve (for floating point arithmetic) command as follows: 

> Ans : = solve(Eqn=0,x);  (The solution will be stored in the variable "Ans")

To learn more about solving equations, download the attached Maple file below and follow along! 

Amina Eladdadi,
Aug 31, 2009, 7:03 PM
Amina Eladdadi,
Aug 31, 2009, 7:03 PM