1 Classification of Equations 2 Transformation of Equations 3 Conditional Equations of First Degree (Linear Conditional Equations) 4 Conditional Equations of Second Degree (Quadratic Equations) 5 Conditional Equations of Third Degree (Cubic Equations) 6 Theorem of GAUSS 7 Regula Falsi (Method to Evaluate Approximate Values as Solutions of an Equation)