Answer:
x+3y=12 --> y=-1/3x+4
3x+y=12 ---> y=-3x+12
5x-4y=20 ---> 5/4x-5
4x-5y=-20 ---> 4/5x+4
2x+5y=-10 ---> -2/5x-2
2x-5y=10 ---> 2/5x-2
8x-4y=12 ---> y=2x-3
4x-8y=24 ---> y= 1/2x-3
Explanation:
You just need to reorder the expression using this model y= x+a