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.
Major cities or places in Texas within area code 830 include: Area code 830, which has a doughnut shape, serves locations outside the San Antonio metro area. The city of San Antonio and some suburbs utilize area code 210.Area code 830 serves the larger communities of Del Rio, Eagle Pass, Kerrville, New Braunfels, and Seguin in addition to many smaller communities within the area code 830 service area.rea code 830 serves the larger communities of Del Rio, Eagle Pass, Kerrville, New Braunfels, and Seguin in addition to many smaller communities within the area code 830 service area.