Answer:
x=2, y=1
Step-by-step explanation:
y=x-1
y=3-x
x-1=3-x
2x=4
x=2
z = 155 ( second choice )
x = 25
65 + 90 = 155
180 - 155 = 25 = x
180 - 25 = 155 = z
i. think. its. c.
