.
x and y;
Description turned into equations:
x+y=2(y-x), (1)
3(y-x)=2y (2)
From equation (1)
3x = y (3)
From equation (2)
y = 3x (4)
Equations (3) and (4) are identical.
It means that lesser number, x, may have any value, and greater number, y, must be 3 times the smaller.
ANSWER. Lesser number, x, may have any positive real value, and greater number, y, must be 3 times the smaller.