Two versions are included in this practice. In the first version, problems (1 - 3) are all in slope-intercept form for easy graphing and problems (4 - 9) are solved for one variable for easy substitution. Problems (1 - 3) are identical to problems (4 - 6); repeated so that students could see how the solution to these systems looks like both graphically and algebraically. In the second version, four of the problems require solving for a variable with problems (1 - 3) also being identical to (4 -