The flag of the United Kingdom is the Union Flag (also referred to as the Union Jack). It was created in 1606 by the superimposition of the Flag of England on the Flag of Scotland and updated in 1801 with the addition of Saint Patrick's Flag.Wales is not represented in the Union Flag, as Wales had been conquered and annexed to England prior to the formation of the United Kingdom.lthough the United Kingdom, as a sovereign state, is a country, England, Scotland, Wales, and to a lesser degree, Northern Ireland, are also regarded as countries, though they are not sovereign states.
System of Linear Equations in 2 variables. How to Solve Systems. A system of linear equations means two or more linear equations. (In plain speak: 'two or more lines') If these two linear equations intersect, that point of intersection is called the solution to the system of linear equations. Systems of Linear Equations Worksheets. System of Equation Solver.
This value of x can then be used to find y by substituting 1 with x e.g. in the first equation. The solution of the linear system is (1, 6). You can use the substitution method even if both equations of the linear system are in standard form. Just begin by solving one of the equations for one of its variables. Video lesson: Solve the linear system using the substitution method. 1  Pre-Algebra. 2  Algebra 1.