please help include the function and answer in the following question

Question

shoe sizes are marked differently in many countries. in japan, a shoe size is 16 more than the size in the u.s. in korea, a shoe size is 224 more than the size in japan. determine the function of the u.s. size of a shoe in terms of the shoe size in korea. what is the japan shoe size of a shoe that is 250 in korea?

Answer 1

j+16=us

j=us-16

k=(us-16)+224

-us=-k+208

us=k-208

k=j+224

250=j+224

j=6