The document discusses the mathematical formulation of linear programming problems (LPP). It begins by explaining how an LPP is translated into mathematical equations with decision variables. An example problem is given involving maximizing profit with constraints on machine hours and labor hours. The objective function for the example problem is defined to maximize total profit (Z) which is expressed as a linear function of the decision variables x and y, which represent units of products A and B. The constraints define the limited available machine hours and labor hours in terms of inequalities involving x and y. Non-negativity restrictions are also included to ensure x and y are greater than or equal to 0.