Answer:
Step-by-step explanation:
Solving
x+4y+-4y=0+-4y _Add -4y to both sides.
x=-4y
Answer
x=4y
1. x=-4 y=1
12y=-3x
If 12y's are equal to -3x, then x must equal -4 and y=1 (well lets see if that works because I am doing this in my head rn)
-4+4(1)=0
Yay! It works!
