Linear combination method just means to add the equations so that one variable with cancel. In this case the a values are already set up so that they will cancel.
2a + 3b = 1
-2a + b = 11
4b = 12
b = 3
now put 3 back into either of the original equations and solve for a.
2a + 3(3) = 1
2a + 9 = 1
2a = -8
a = -4
(-4,3)
What? That doesn't make sence! Any way if you mean 1997 to 2014 how many years.
Answer:
D. Jasmine bought some tiles to put around her patio. Each tile has a length of 23 feet and a width of 15 feet. What is the area, in square feet, of each tile?
Step-by-step explanation:
Area= Length x Width
