Dear Newsgroup, Can a TI-86 calculator by any chance solve a system of equation with 3 variables? An examble is: 4x-y-z=4 2x+y+z=-1 6x-3y-2z=3 Can the ti 86 by any chance solve for all three variables, x,y, and z?? If so please post how or e-mail me. Any help would be much appreciated. Thanks a BUNCH!