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.
The adjective rheumatic describes anything having to do with rheumatism, a painful disease of the joints. If your grandfather moves slowly, you could describe him as rheumatic. You could describe a doctor as a rheumatic expert, or a patient as moving in a rheumatic way, slow and arthritic. The Latin root word is rheumaticus, troubled with rheum, and rheum itself is a Greek word that means flow..