Answer:
# 1. Answer: (x,y) = (3,5) #2. Answer: (x,y) = (2,7)
#3 Answer: (x,y) = (3,-3) #4 Answer: (x,y) = (-4, -5)
#5 Answer: (x,y) = (6,7) #6 Answer: (x,y) = (-2, -1)
#7 Answer: (x,y) = (-4, -5) #8 Answer: (x,y) = (6,-2)
#10 (x,y) = (x,y) ∈∅
#11 (x,y) = (-
-
y, y), y ∈ R
#12 (x,y) =
,
Explanation:
Not writing out all these solutions. I suggest you download the app. Photomath it goes over the explanation too.