Answer:
If the 2nd and 3rd are same, then the only difference between 1st and 2nd is that the 2nd one becomes positive on solving.
1st→ -x²
2nd→ (-x)² = x²
Answer: n = -1 n = 3
Step-by-step explanation:
x=2, y= -1 (2,-1)
4y=2-3x
11x+(2-3x)=18
8x+2=18
8x=16
x=2
22+4y=18
y=-1