This document discusses solving systems of three linear equations in three variables using the elimination method. It provides examples of setting up systems of equations, eliminating a variable to create a system of two equations with two variables, solving the reduced system, back-substituting to find the third variable, and checking that the solution satisfies all three original equations. The solution is written as an ordered triple (x, y, z). Graphing is not recommended due to difficulty accurately graphing three-dimensional planes. Examples are worked through to demonstrate the full elimination method.