Other Methods for Solving Systems
In this solving systems of equations instructional activity, 9th graders solve 11 various types of word problems that apply other methods for solving systems. First, they determine the coefficients that do not add or subtract to zero in each system and then. describe the steps in how to use the coefficients of the x terms in the system to solve for y. Students also describe why a linear combination probably is easier than the substitution method for solving systems.