In the solution of the system of quadratic equations 3x + 4Y = 1, (A-1) x + ay = 3, if the values of X and y are equal, what is a =

In the solution of the system of quadratic equations 3x + 4Y = 1, (A-1) x + ay = 3, if the values of X and y are equal, what is a =

From x = y, we get
3x+4x=1,(a-1)x+ax=3
7x=1,(2a-1)x = 3
Substituting x = 1 / 7 into (2a-1) x = 3, a = 11