Using Substitution to Solve Linear Systems of Equations

Today, we solved the same problems we graphed on Friday using a different method. We substituted one part of one equation in for a variable in the second equation, and then used our algebra skills to determine the value of the remaining variable. Many students liked this method of solving the problem better, although it did, in some cases, require a few more steps.

Tonight's Homework: Complete the three problems on the Guided Practice for Using Substitution worksheet, and include check steps. Also, do Lesson 7.2 (18 - 22 even).