Answer:
(8,8)
Step-by-step explanation:
The first equation says y and x are the same, so any x in the second equation can be replaced with a y, so
y = 2x - 8 and y = x, substituting x for y gives
x = 2x -8, subtract x from each side, add 8 to each side, get
8 = x
substitute that value back into the first equation
y = x, x= 8, so y=8
