Keywords: systems of equations, systems of inequalities, graphing method for solving systems of equations, substitution method for solving systems of equations, addition method for solving systems of equations, linear combinations, consistent system of linear equations, and inconsistent system of linear equations. Key Concepts We will verify the solution of a system of linear equations in two and three variables; use the substitution and addition methods to solve a system of equations in two and three variables, determine if a linear system or graph of a linear system is consistent or inconsistent, and if consistent systems are dependent or independent, and finally, solve a system of inequalities graphically. All above info from ITT Tech Instructors Guide
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