Elija is 2x as old as iya,iya is nineyears younger than erika,3yrs ago elijah was 2x as old as erika

The problem has no solution, because the three relations given lead to contradiction.

Proof:

E = age of Elijah
Y = age of Iya
R = age of Erika

The relations expressed in equations are:

1) Elija is 2 times as old as Iya.
Y = E/2

2) Iya is nine years younger than Erika.
R - Y = 9

3) 3 years ago Elijah was 2 times as old as Erika.
R - 3 = (E - 3) / 2 | +3 (to make the equation express the relation as of now)
R = ((E - 3) / 2) + 3

Now, 1) and 3) describe the age of Y and R exclusively in terms of E. We can work out the difference R - Y as 1) - 3):

R - Y = ((E - 3) / 2) + 3 - E/2
R - Y = E/2 - E/2 - 3/2 +3
R - Y = 1.5

which is not even remotely as equal to 9 (as given in 2)) as you might like it to be.
Thus the contradiction is verified.