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 253 area code belongs to the state of Washington (WA) and some of the locations covered are Federal Way, Tacoma and more: 09:58:46 PM.he 253 area code belongs to the state of Washington (WA) and some of the locations covered are Federal Way, Tacoma and more: 09:58:46 PM.