Final answer:
There is no solution for y in terms of the given values.
Step-by-step explanation:
To find the value of y, we can substitute the given values of a=1 and y=0 into the equation 2/(a-1) = 4/y. However, we cannot divide by zero, so this equation is undefined when y=0.
Therefore, there is no solution for y in terms of the given values.