Answer:
Step-by-step explanation:
Systems of linear equations can be used to solve resource allocation problems in business and economics (see Problems 73 and 76 in Section 4.3 on
production schedules for boats and leases for airplanes). Such systems can
involve many equations in many variables. So after reviewing methods for
solving two linear equations in two variables, we use matrices and matrix
operations to develop procedures that are suitable for solving linear systems of
any size.