Tolerance on the dimension x in the two component assembly

Tolerance on the dimension x in the two component assembly shown below in (all dimension are in mm)

X_max = 50.02 – (38 – 0.015) – (10 – 0.01)
= 2.045mm
X_min = 49.98 – (38 + 0.015) – (10.01) = 1.955mm
X = 2 ± 0.045