A way to solve a linear system algebraically is to use the substitution method. The substitution method functions by substituting the one y-value with the other. We're going to explain this by using an example. We can substitute y in the second equation with the first equation since y = y.
Area code 970 is an area code serving most of the western and northern parts of Colorado.It covers Aspen, Vail, Durango, Grand Junction, Fort Collins, and Estes Park.rea code 970 is an area code serving most of the western and northern parts of Colorado.
Quebec implemented area code 873 as an overlay of area code 819 on September 15, 2012 and Manitoba implemented area code 431 as an overlay of area code 204 on November 3, 2012.In 2013 four new area codes were implemented in Canada.Ontario implemented two new area codes 437 and 365 on March 25, 2013.n 2012 two new area codes were implement in Canada. Quebec implemented area code 873 as an overlay of area code 819 on September 15, 2012 and Manitoba implemented area code 431 as an overlay of area code 204 on November 3, 2012. In 2013 four new area codes were implemented in Canada.