Answer:
43b. (-1, 2)
43a. (1, -3)
36b. Yes: (0,9)
Step-by-step explanation:
43b. x+y=1
-x+y=3
----------------------
2y=4 > y=2
2+x=1 > x=-1
check:
2(-1)+2=0
0=0
43a. can you figure this one out by yourself and then check it? If you can't I will show my work. The answer is above. :)
36b. y-(0)^2=9
y=9
