Answer
There are infinite solutions for y.
Step-by-step explanation
We are told that -2 (y - 4) is 20 - 2y - 12. that is,
-2 (y - 4) = 20 - 2y - 12
-2y + 8 = 20 - 12 - 2y
-2y + 8 = -2y + 8
0 = 0
This means that there are infinite solutions for y.
Hope this Helps!!!