Know if an ordered pair is a solution to a system of linear equations in two variables or not. Solve a system of linear equations in two variables by graphing. Solve a system of linear equations in two variables by the substitution method. Solve a system of linear equations in two variables by the elimination method. In this tutorial we will be specifically looking at systems that have two equations and two unknowns. Tutorial 20: Solving Systems of Linear Equations in Three Variables will cover systems that have three equations and three unknowns.
Medical Definition of rheumatic. : of, relating to, characteristic of, or affected with rheumatism rheumatic pain a rheumatic joint.
Rheumatic fever is an inflammation in the heart, joints, skin or central nervous system that can occur following inadequately treated strep throat or scarlet fever.These diseases are caused by an infection with group A streptococcus bacteria. Proper treatment of strep can prevent rheumatic fever.heumatic fever is an inflammation in the heart, joints, skin or central nervous system that can occur following inadequately treated strep throat or scarlet fever.