Answer:
A. x = 5, y = 6
Step-by-step explanation:
The directions tell you to do steps on the calculator, so I can't explain or show how to use it in the calc. But simply just plug it into the calc as a matrix and do rref.
x= 5, y= 6
5x - 4y = 1
4x - 2y =8
Multiply the second equation by -2
-8x + 4y = -16
Add this to the first equation
---------------------
-3x = -15
Divide by -3
-3x/-3 = -15/-3
x = 5
Now find y
4x -2y = 8
4(5) -2y = 8
20-2y = 8
Subtract 20
-2y = -12
Divide by -2
y = 6
