The question has a typo (It is 3 years older than 2/3 times Lily's age). I attached the correct question below.
Answer:
Lily is 24 years old
Step-by-step explanation:
Assume that Lily's age is x and that Hilitary's age is y.
We are given that:
Hilitary's age is 3 years greater than 2/3 times Lily's age
This means that:
y = (2/3 x) + 3
Now, we are given that:
Hilitary's age is 19 years old.
This emans that : y = 19
Substitute with y = 19 in the above equation and solve for x as follows:
y = (2/3 x) + 3
19 = (2/3) x + 3
19 - 3 = (2/3) x
16 = (2/3) x
48 = 2x
x = 48/2
x = 24
Hope this helps :)