  1st: Arrange the equation so it looks like:
 ax + b= cx + d where some of the values may be zero.

 2nd: Check the equation to see if the solution is
 "all numbers" (for a true statement), or,
 "no solution" (for a false statement).
 See Solutions to a Linear Equation & Solving Linear Equations Graphically for help.
© 2007, A^{2}, www.mathnstuff.com/math/algebra/asolin5.htm
 