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.
rheumatism (rÅÅËÂ·mÂ·tiËÂ·zm), n an inflammatory condition of the joints, bursae, muscles, or ligaments; distinguished by a hindering of movement, pain, and a deterioration in at least one part of the musculoskeletal system. Examples include rheumatoid arthritis, gout, ankylosing spondylitis, or systemic lupus erythematosus.