Answer:
Question 8: (3,12)
Question 9: (8,-9)
Step-by-step explanation:
Question 8.
(5+x)/2 = 4
5+x=8
X = 8-5
X=3
(-6+y)/2=3
-6+y=6
Y=12
Question 9
(-2+x)/2=3
-2+x=6
X=8
(9+y)/2=0
9+y=0
Y=-9
