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.
The 651 area code belongs to the state of Minnesota (MN) and some of the locations covered are Apple Valley, Lakeville, St. Paul and more:he 651 area code belongs to the state of Minnesota (MN) and some of the locations covered are Apple Valley, Lakeville, St. Paul and more: