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.
Definition of pneumatic. 1  1 : of, relating to, or using gas (as air or wind):a : moved or worked by air pressureb (1) : adapted for holding or inflated with compressed air (2) : having air-filled cavities. 2  2 : of or relating to the pneuma : spiritual. 3  3 : having a well-proportioned feminine figure; especially : having a full bust.