Please show how to calculate the accumulated deprecitation for machine a and b? by showing steps

During 2017 , Ly Company disposed of two different assets. On January 1, 2017, prior to disposal of the assets, the accounts reflected the following: The machines were disposed of in the following ways: a. Machine A: This machine was sold on January 1,2017 , for $5,750 cash. b. Machine B: On January 1, 2017, this machine suffered irreparable damage from an accident and was removed immediately by a salvage company at no cost