The occupations of biomedical engineers, skin care specialists, and physician assistants are among the 15 with the largest growth from 2008 to 2018. The number of physician assistant jobs will grow 6 thousand less than 3 times the number of biomedical engineer jobs. The number of skin care specialist jobs will grow 9 thousand more than half the number of biomedical engineer jobs. If the total growth of these three jobs is predicted to be 57 thousand, find the predicted growth of each job.