**I. Function Keys **

J. SOLVERYou can enter an expression or an equation and then store values to all except one variable in the expression or the equation. You can then solve for the unknown variable.There are other ways to solve equations that are easier to use, but here is a simple example of how the function can be used.

Example: Solve the equation for x, when y=-3, m=4, and b=5.

Enter the equation using

and .

Enter the values. Press .