Answer:
1 and 2 answers are correct
Step-by-step explanation:
2x-y= -8
x-y = -4
ADD BOTH (y is cancelled)
3x= -12
x= -4
-8+y=-8
y=0
-4-y = -4
Multiply all by -1
4+y=4
y=0
Answer:
Step-by-step explanation:
i do not know
Answer:
x= 1, -1
Step-by-step explanation:
Answer:
The one that is 0,-3 and 3,0
Step-by-step explanation:
The answer is 1, anything that is raised to the 0 is always 1